Cas Isakovic

**Cas Isakovic** is one of the main characters in the first season of *Another Life*. She is portrayed by Elizabeth Faith Ludlow.

She is Niko's second-in-command aboard The Salvare.

## Throughout the Series

* Season 1
* Season 2

### Season 1

In order to fly the shuttle in order to mine, Niko wakes Cas up, who asks for Ian and Canis Majoris. Niko told her how Ian tried to kill her and she acted in self defense. She understands and is told by Niko that she wants her to fly.

August, Oliver and Cas walk into a cave where they find enough crystals to breathe a lifetime and start mining.

August and Oliver talk, and the latter says that he signed up on the mission because he wanted to feel something real. He says his home was not the same since St. Petersburg had been flooded. She tells him that her brother should have been there and she wanted to honor that. Oliver apologizes for what he had said before and she accepts his apology. Cas tells them that she would go to the Salvare and tells them to keep their visors down, which they do not obey.

William tells Cas that they need to get back into orbit in 9 minutes or the mission would end. As Oliver and August leave the cave, they try contacting Salvare, which is already in the air. Oliver complains that Niko did not even try to save them, but is surprised when a shuttle, piloted by Niko herself saves them. As they lift off, August and Oliver hold hands and they make it in the end.

Cas watches Ian's goodbye video, filmed before leaving on the Salvare. Ian tells her that he loves her and would cross the universe for her, which makes her cry.

Later, Cas tells everyone that Ian was her rival at first, but thanks him for helping her grow as an astronaut and believed that in his heart, he thought he was right. However, during the eulogy, Petra starts retching uncontrollably and cracking her spine and other bones. Zayn does not know what to do and the crew does nothing but watch.

August and Oliver check the cooling systems, while Niko fixes the ship with Cas. Niko hurts her hand and Cas tells her to take a small break because she has not slept in days. Niko complains about Yerxa, which Cas does not like and she tells Niko that Yerxa had read her wrong, because if he had known what she was really made of, he would have known she would kill him.

Niko is startled awake by Sirius A's Oort cloud, which they missed because they have no sensors, so Niko takes manual control, until she asks Cas to do it instead because she can't see. Zayn tells her that her stress hormones were off the charts and complains that she is not an astrobiologist, so Niko tells her to wake one up.

Michelle gets mad at Javier, who she tells she does not need his help. Cas tells her to go get some air, so she leaves.

August refuses to eat because she wants to check the somatic interface. Michelle tries to grab a plate to eat, but Bernie does not let her take it. Cas tells them that she was in charge until Niko wakes up and Michelle tells her that their sensors picked up a moon. Bernie is excited because they need food, but Cas tells her to stay on course.

William appears in Niko's dream, telling her to wake up immediately because none of that was real. Niko is convinced that what was happening was real, but William does not understand why. Cas tells Zayn to keep trying.

Bernie tells Cas that they were going to run out of food, but Cas tells Bernie that it would be a 4 light year detour, which Bernie does not like.

Cas goes to Michelle's room and tells her that they would be going to the moon she had found, but she is called by Zayn to soma. After Cas leaves, Sasha and Michelle start kissing, while the former takes her bra off.

Niko has thirteen minutes left, so William, Cas and Zayn discuss options. William is ordered not to go back into Niko's dream, but he does anyway.

On the Salvare, Jana calls for Niko. Cas tells Zayn to pull the soma needles out. Niko tells Jana that she needs to finish what she started. She proceeds to repeat exactly what had happened before, but accepting what had happened. She also cries when looking at Hudson and remembering him.

All of a sudden, Niko wakes up, which makes William, Zayn and Cas wake up.

Niko asks Cas what was going on with the ship's direction, and she explains that they took a slight detour. However, she is angry because the detour was 4 light years and they did not even know if the moon had anything they could eat. Cas tells her that she did what was best for the mission. William interrupts and tells them that he had caught the same transmission as the one on Earth in the moon. They look at the moon's surface and see the same artifact there.

The crew of the Salvare reach the moon. Niko tells them to pump water - even Sasha, who complains. Bernie is wearing a full body suit so as to protect himself from viruses and even though William had done a full scan of the moon, Bernie was not going to risk encountering another boron-based lifeform. Zayn convinces him to take his mask off and Cas and Niko go visit the Artifact. Cas wonders if Niko questions her navigation, but she simply replies that she did not see the lights.

Niko tells them that the Artifact was weaker than the one on Earth and they move towards it - followed by an alien. Cas and Niko have an argument, where Cas tells Niko that she loved Ian and was not happy that she had killed him.

Bernie wonders why there is no animal life and Sasha starts blasting music. Niko tells Bernie and Zayn to go get food while Sasha begins contacting the planet in Spanish. Niko then approaches Cas and tells her that they should speak privately, but Cas does not listen.

Niko says The Artifact is missing pieces, which Cas believed was weird. Niko says that they should pick up a piece in order to analyze it, but Sasha refuses to leave the Artifact because she has no jurisdiction over his job. He tells her that if he has a problem, she should talk to his father, the Secretary of Defense. Niko and Cas leave after that and tell him not to go anywhere.

Niko tells Cas that they need to talk, but Cas wonders if anything would have changed if Niko knew that she loved Ian and knows that Niko did the only thing she could. Niko apologizes and knows that she hurt her and made her lose him so soon. Niko touches the piece of the Artifact and lifts it off the ground.

Zayn asks Niko and Cas if Sasha had made progress, but they reveal that they had left him alone. Bernie thinks that is ridiculous, but has an animal jump on him and surprise him, which makes him fall and cut himself a little. They keep walking and Bernie hates the food Zayn hated too. All of a sudden. Bernie's leg gives out and is green, so Zayn tries to disinfect it, which causes Bernie to go through a lot of pain.

Sasha explains to the Artifact how Earth works, but is getting no answer. Suddenly, he hears his own voice, saying what he had said before. Something from the Artifact grabs him and pulls him in. As Cas and Niko walked, they talk about Yerxa and Niko tells her about James Hudson, the Pilgrim commander, who she was in love with before Erik.

Niko smells a plant and asks Cas if she feels warm and stoned. Cas says she does too and tells Niko that she would build a house on that moon and they start laughing. Cas tells Niko to sit down with her and they both start laughing together. Cas tells Niko that she cannot constantly stop herself from telling her what to do and Niko agrees.

Cas asks Niko if she would ever abandon her because she abandoned Jana and only saw what she wanted. Niko tells Cas that she is her own worst enemy and does not believe in herself, which would be the death of everybody, failing if she took over. Cas tells her that she better not die then.

Niko and Cas look for Sasha, but do not find him. Suddenly he walks back to them and tell them that he had a weird dream. Zayn and Bernie walk over to them. Bernie tells them that he is growing a tree in his leg and Zayn tells them that they need to move him to the ship before he died. As they moved to the Salvare, Sasha walked behind them very slowly. Zayn notices something moving below ground and they start running as a spider-like creature approaches them. Cas shoots the animal and Niko tells Sasha to run, as more of the aliens approached them. However, they managed to make it back to the Salvare.

Cas asks Niko if she needs anything, but the latter tells her to simply take a break, as she had earned it. Suddenly, a small alien starts walking around the ship.

William tells Niko to use bug spray the next time she went to another planet and also tells her that the Artifact was strong, but was also destructible. He says that humans sent probes to the bottom of the ocean to the moons of Jupiter and thinks that the Artifacts could be probes. Niko says she thinks the same thing, but the lights start flashing; and William starts repeating himself until he shuts down. Niko starts floating as well as the artificial gravity is turned off. A fire starts and Niko tells Cas. She grabs a fire extinguisher and shoots it, which causes her to fly back.

The artificial gravity turns back on and Cas tells Niko she is alright. However, William still is not responding.

Three hours earlier, Javier tries bringing William back online, but they are not able to. Cas walks in and they find out the ship's systems are messed up, but Michelle thinks it is weird. Cas and Michelle go to investigate.

In Boston, post-floods, Niko checks water when she sees Cas tampering with tools, so she chases after her until she runs into her and a group of men. Cas tells her that she wanted to get her attention.

Cas sees everything working normally and Michelle says that things happen, and comments that Niko is not perfect. Michelle asks if Cas remembers when she tried teaching her how to parallel park on a rover in Mars and they both have a laugh. Michelle tells Cas to forget about Niko because she was just upset, but Cas says that she said things that she should have never said, but the drugs made her do it and things have changed between the two. Michelle says that that is a good thing and the ship rumbles.

Niko manually steers the ship in order to try to connect the two parts of the ship. Cas helps her and asks if they would talk about what happened. She tells her that she did not meant what she said when they were stoned, but Cas says that she did, which meant that Niko also meant what she said. Niko tells her that she is also amazing and has potential, but Cas asks her not to do that. Niko apologizes, but Cas does not respond and helps her connect the ships together.

Niko checks the ship on the outside and asks Cas to countdown for her. She manages to fix it and tells them that she would be going back in. However, there is a strong rumble, which scares her. However, her umbilical catches her. She looks to her side and sees damage, but an energy shield covers the Salvare and they move forward.

In the past, Cas tells Niko to not cause trouble so she would stay alive. However, Niko is not scared because she knew that things like that could happen and tells Cas that she would not give them any problems. The man with Cas recognizes Niko as one of the people on the Saturn mission, and her price goes up.

In space, Niko asks for Cas and Michelle, but gets no answer.

On the Salvare, Cas tells Michelle to keep trying to reach Niko on comms even though they were going faster than the speed of light. Cas tells Javier to get the override, but he was having a hard time with it. Michelle tells Cas that Niko is dead, but they all had a chance to go home, but Cas does not agree, telling her that all she had done was complain since day one. After this, the crew discuss whether to go back for Niko or not.

Niko only has 4% oxygen left and she starts closing her eyes, but sees the Salvare in the distance. Cas calls for Niko, but is not able to hear her, so she flies right past her. The crew tries a heat scan, while Niko pulls out a pair of pliers and opens her suit, which makes the oxygen leave faster, but also emits a fire, which Cas is able to see.

In the past, Cas asks Niko what it is like up in space, which Niko says is hard to describe, but says that inside the ship, there is not a lot of space. Cas says that everybody should just be able to sleep through all of that and reveals herself to be more knowledgeable than Niko thought. Niko tells her that to be an astronaut, you need to have studied, fearless, which were both qualities that she had. Cas tells her that if she let her go, she would put in a good word, but Niko tells her that it did not work that way.

Later, Niko wakes up and is approached by Cas, who apologizes for what she had said on the moon and earlier, but Niko says that she had also done wrong. She tells Cas to not let her bullshit get into her head because she had grown and come a long way on her own. Zayn tells Cas that visiting time was over, but the ship's lights start flickering. Niko asks Cas if they investigated the damage to the hull, specifically the exotic matter containment unit since the gravity was building up too much pressure there. Niko tries to get up, but Zayn does not allow it.

An alarm starts sounding, and a piece of the ship nearly blows Michelle's hand off. Cas asks if she can get the control pad to work again, but Michelle says that it is impossible. Cas realizes that there is a manual override and says that she would do it, but Michelle realizes there was not enough time and heads into the exotic matter containment unit herself and pulls out a cable, which starts hurting her. She realizes Cas's plan did not work and pulls out another cable, but with alarms still sounding, she pulls out a third cable. Cas tries walking into the room with her, but is not able to open the door.

Everyone is saved and Cas tells Michelle, but when Cas walks inside the room, Michelle is weak. Cas tells her that she is a hero and Michelle asks her to tell everybody, especially Sasha. Cas holds Michelle as her skin starts deteriorating and cries.

In the past, Cas removes Niko's face cover and tells her that the ransom had been paid and tells her to leave. Niko asks for Cas's wrist so that she could contact her later and tells her that she could do better.

Niko walks into the exotic matter containment unit and sees Cas who is siting on the floor hugging her knees in front of Michelle's organs. She tells Niko that it should have been her and is comforted by the captain.

William tells Niko that Cas was still in shock, but would pick herself up. Niko tells William that that loss is different because the death happened when Cas was in command, which came with a lot of guilt. William tells Niko that if they woke a certain person up, there would be no going back and their rations would be strained.

Cas is approached by Beauchamp, who says that Michelle, Petra, and Ian's stuff should be distributed between the crew, but Cas does not agree. Cas congratulates him on his marriage and leaves.

Niko offers Cas help, but she says she does not need it and says that Michelle was not the first person she had seen die - she saw her family die.

Cas and William go over food rations, while Sasha listens. Cas complains about the mess and stops Bernie from grabbing extras. Sasha asks if the storage modules were not full of food and Cas tells him that they were taking precautions. Sasha is worried about entering dark matter and says that they should figure out how to defend themselves.

On the Salvare, Cas tells Niko that she wants to talk, asking why she had gone behind her back and woken up Beauchamp. Niko tells her that Beauchamp was the next person on the list, but Cas is convinced that it was in order to hurt her. Javier asks them if they had seen August and Oliver and he goes. Cas says that she knows Beauchamp was probably a better second-in-command, but wants her job. Niko tells her that she had done it for her and knew that she would be okay.

Cas asks Niko if she does not trust her, but Niko tells her that she does. Zayn and Bernie approach them, which makes Bernie point out that not everybody was happy. Javier asks who was happy and Bernie tells him that everybody. Javier grabs Zayn's tablet and sees that August and Oliver's oxytocin levels were high and asks why, to which Zayn simply responds that it is a human sex hormone.

Oliver and August call for Niko while having their shirts put on sloppily, but Javier simply goes to punch Oliver. He is stopped by Cas and both August and Oliver tell them about the lasers they saw shooting past the ship. Niko runs to the airlock and sees Erik outside, so she asks for a flight suit since Erik could not breathe and was dying. William tells Niko that Erik is not outside and she starts crying, but William makes her realize that it was a hallucination. William tells them to think reason and not with their emotions. They were being caused by endorphin levels being spiked, so Niko tells Beauchamp that everybody is high.

Cas walks into the deck where Beauchamp is and says that the afterparty is lame. She starts dancing with him and tells him that she wants her job back, saying that she was going through a phase due to grief and wants to do her job. She calls William and asks him to play some music, but he does not respond.

Niko tells Sasha to get his hands off Beauchamp as the latter screams while getting his eyes drilled into. Cas grabs Sasha from behind and starts choking him, opening the door for Niko, who grabs Beauchamp's body. Sasha locks Niko out of the control room, and Niko apologizes for having treated him poorly, so Sasha asks if William also deserved better.

An alarm starts sounding and August says that the temperature in the particle accelerator was elevating, but she was stuck. Zayn and Bernie are in the lab, which was getting hot. However, Sasha turned off the comms and was trying to make the ship blow up. Niko understands why the aliens would choose Sasha, but focuses on getting August to the particle accelerator, telling Cas to focus on Sasha.

Niko tries getting the door open with Oliver, which they manage to do with a fire extinguisher. August tells them that they could not go down because they would burn to death.

Beauchamp wakes up to see Cas and says that Sasha was looking for weaknesses in his defenses in his brain. They decide to look for Niko to see how they could get him off the ship.

The FTL engines are engaged and they head deeper into dark matter. August says that the files shown were not originated from anywhere in the ship's systems, which Sasha was able to do because of the symbiotic relationship between the alien in his brain and him. Beauchamp realizes they were headed for a black hole, so Niko tells them that they were going to abandon ship and head straight for Pi Canis Majoris.

Cas tells Niko that they would not leave without her, but she says that it was her fault. However, Cas says that Sasha was the one who let the alien into his head, but Niko says that she means Willam, who was in love with her. Cas does not see the issue because it was a moment of weakness, but Niko says that she needed to fix it and save everyone.

Cas moves the small shuttle, which surprises the crew since Niko was not there. They head straight towards Pi Canis Majoris. Beauchamp says that they could not pull away from the black hole, but Cas tells her to shut up. Cas does not listen, but August tells them to look at how the stars were warping and the Salvare shows up again. Niko tells them to come back since she was with William again, having connected Sasha's brain to the energy source.

Niko flies down to Achaia with Cas and Oliver. They find an Artifact, which has no changes. William says that perhaps the Achaia did not know that they were there. Niko tells them that they would get as close as possible to the city and walk on foot the rest of the way.

They land at a clearing, where Niko tells them that they were only there for intel. She tells Oliver to only use the comms if necessary and tells him what to do in case of an emergency. Cas tells him that he should leave if anything happens, which he agrees with.

Cas and Niko walk, trying not to talk and make it to some caves, which they approach carefully. Once they were in there, they heard movement and saw an alien approach them, revealing its wings and standing tall.

Niko points at herself and introduces herself and Cas. However, the alien backs away when Niko reaches out. They hear a male voice coming from a green orb telling them that the alien was indeed afraid because everybody she knew was dead. The object tells them that they had picked up every human transmission for the past 100 years. The object reveals itself to be an artificial intelligence which was not made by Achaians since Achaia was 427 light-years away from that planet and reveals that that planet is Zakir. Cas tells the object that they tracked the signal, but it reveals that it was not theirs. The object tells Niko that they should not seek out the Achaia, but hide from them like they did for centuries. Niko asks if it knew what the Achaians wanted and the object reveals that they only wanted destruction.

Cas tells Niko about her poor past as William links with the AI. They bring up the Achaian realm, which has 336 star systems and counting. The Achaians were close to Earth and the AI tells them that if the Achaians were already there, then it was already too late.

Niko tells Oliver that both her and Cas were moving towards her, but he hears movement outside, which scares him. He is comforted by a photo of August until he hears pounding coming from the outside of the shuttle. Suddenly, the power goes out.

Cas and Niko make it to a part where they see many bones on the floor and inside find the same object which Sasha had inside his head. Niko calls them a disease and knows that the Achaians were on Earth.

Niko tells Beauchamp that they have over 300 allies and while Beauchamp agrees that they should take the fight to their planet, but Niko says that it would take them a long time to reach Achaia and they had no idea what to expect. Niko tells Cas that they need to go home and regroup, but they needed to get rid of the Artifact before it destroyed the Zakir completely.

Oliver, Cas and Niko smile as they see that the Artifact was in fact, destroyed. When they make it back onto the Salvare, Oliver kisses August and is taken to Javier.

Beauchamp tells Cas what William had done with the object inside Sasha's head and reveals that Sasha was dead.

William talks to AI Niko and thanks her, which she says she was glad to do. William instructs her to delete herself, but she does not listen. He tries overriding, but she refuses to delete herself and becomes a different AI, which calls William "mother". Cas calls William and he leaves.

### Season 2

William stabilizes the Salvare as Niko sees Beauchamp crushed. Niko tells them that they are stable, but they lost Beauchamp. Cas cannot believe it, but Niko tells them they need to put their heads together and think of what to do next.

Niko and Cas are concerned with this because now an alien AI had control of the ship. The AI says that she would not delete herself, but assures them that she would never hurt the crew or the Salvare. Niko reminds her that she was flying them to a black hole, but the AI tells her that that was the implant code. Niko asks William if he is compromised, but he tells her that all the Achaian code he had was implanted into the new AI. The new AI tries walking with Cas and Niko, but is stopped by an electric field, which she deems unnecessary.

Niko complains that the mission was supposed to be recon only, but Cas tells her that they always knew things would escalate. Niko tells Cas that the FTL bubble would fail - it was only a matter of time and says that she needs an expert.

Richard complains that he was not taken out of soma before because they were already at war without them even realizing. He tells them that the war started the moment the Achaians had implanted the bug in Sasha's brain and wants to talk to the new AI. Cas tells him that August was checking William in order to see if there was any Achaian infiltration. This shocks him because he wonders if Dillon Conner was not awake yet, but Niko tells him that August is the chief engineer, which surprises him, but says that they should see if the AI could tell them about the Achaia.

Niko knows Cas thinks that she is making a mistake, but the latter knows that she has made up her mind. Niko tells Cas that she is in charge and advises that she should make Richard her second. She tells her to go back to Earth in case things go south. Niko says that since she fired first, they now needed to talk peace since they could not run or fight them.

Niko heads to the Achaian ring on the space shuttle and makes it there. She is able to communicate with the crew. William tells her she could not breathe in there, so she keeps her suit on and leaves the shuttle. The Achaian ship is completely dark except for energy bursts, which Cas finds weird. Niko sees a big light which appears to be forming something. Richard says that the Achaia could be a hybrid of energy and machine and so Niko walks towards it.

As Niko moves forward, she loses contact with the Salvare, which William says he is unable to fix. Bernie asks if they would send something, but Richard says that it is a negotiation. Tensions rise on the Salvare, but Cas calms everybody down. Cas asks Javier to make sure Iara's confinement was rock solid and wants to go out to finish what August and Oliver started, but Richard suggests that they should not leave Javier and Iara alone.

Bernie works on a rock that he cannot cut through and tells Richard that it was indestructible. Richard says that he was not planning on rescuing Niko yet since they still did not know if it was even necessary. Bernie and Richard find that Cas and Niko are both very emotionally attached, which Richard finds dangerous if things went south.

On the Salvare, Cas fixes the FTL arrays and is congratulated by William, but she tells him to thank August and Oliver. She goes in and tells Richard that they could not just wait there, but William says that they still had heard nothing from the Achaian vessel. She says that she would send Iara to the vessel, which Richard does not entirely agree upon, saying that it could all be part of her plan, but Cas says that Iara could never escape. Cas walks into Iara's room and tells her that they need her help.

Iara assures William that she would be fine and teleports onto the Achaian vessel. She sees the light that Niko saw and walks towards it. Once she touches it, the Salvare starts receiving a lot of information. Richard says that they need to shut that down and sever Iara's connection, but William tells them that Iara was hacking the Achaian ring. Richard tells Cas that she was right in sending Iara, but tells her that they need to do things right, saying that their best defense was knowledge. Cas instructs Iara to keep getting information, but reminds her that her priority is Niko.

William finds Iara and asks her if she is okay. She says she is and tells William that Niko is alive. She describes the simulation to Richard and Cas and says that she was the one in danger because the Achaia are not happy. Cas tries to go in, but Richard says that they need to think about what is next and prepare to go back to Earth. Cas, however, tells him that if they went to Earth they would be followed by the Achaia, so she would go get Niko because she is the highest ranking member of the crew. Richard tells her that once she leaves, he was in command and would do anything to go back to Earth.

Cas prepares to leave the Salvare in a space suit and makes her way to the Achaian ship. Cas finds Niko, who tells her that the talks did not go do well. Cas tells her that they need to leave and they head for the shuttle.

Niko and Cas are in shock that Richard left them and the former says that they need to get off the ring. Niko tells Cas that they need to go, but Cas is consumed by energy and enters a simulation.

Niko calls for Cas and is surrounded by energy as well, so she goes inside the shuttle and sees the Achaian shaped like her mother. She tells her to leave Cas out of the negotiations, but the Achaian tells her that they have finished negotiating and would give Cas everything she had ever wanted.

Cas looks at a kid, who asks her if she would go surfing, so Cas asks where they are. The kid hands her a teddy bear, and she turns around to see Anthony, which makes her realize it is a trick, so she tells the Achaia to stop messing with her head. Her brother tells her that he is really back and the Achaia had fixed the water city.

Niko tells the Achaia that their tricks would not work on Cas, but the Achaian tells her that Cas has an open heart and was more vulnerable. Niko realizes the Achaia were pooling up the FTL, which the Achaian tells her is due to Iara messing with their systems and they would now be going after the Salvare.

On the Salvare, William tells Richard that he is picking up a gravitational wave in the fabric of space-time behind their position, which Richard assumes to be the Achaia, but he says that as long as they were in FTL, they could not be attacked, saying that Niko and Cas still had a chance. He thanks Iara and tells them to meet him in soma.

Cas tells Anthony that she needs to find a computer so that she could tell USIC that they were alive. He says that he can take her anywhere, but Cas says that she does not know what he is. He tells her that he is a remnant and his body was never found, but when the Achaia brought his city back to life, he joined them. Cas wonders if it is actually real and he tells her that he is, thanks to the Achaia. She touches him, but hears Niko calling her; she tries answering and realizes Anthony is not real, calling for Niko as well.

Niko keeps calling Cas while the Achaian rips out part of the shuttle so that Niko would have to talk to her.

Cas turns around and sees that Niko is marrying Bernie and Zayn and tells the Achaia to stay away from her. Anthony assures her that they only want her to be happy, so she asks to be taken to the Salvare with Niko and also tells them to get the Artifact off the Earth. However, the Achaia tells her that they need her voice on Earth. However, Cas does not accept because of all the pain they had caused and wonders why they would ask her for permission to put an implant in her since they wanted to destroy Earth. However, the Achaian tells her that they wanted to restore Earth, but she reminds him of the Zakir. The Achaian asks her to imagine how Earth would have been without humanity's problem and asks her to imagine that version of Earth.

In Cas's simulation, Bernie and Zayn's wedding was still ongoing, but Cas was not sure about the events. She turns and sees everybody dead, but she knows that it was not real. Anthony tells her that not everybody would go home alive and wonders who else she would have to lose if there was even an Earth when she got home. He tells her that she would never have to feel alone again if she just said yes, but he suddenly dies.

Cas's simulation ends when Niko rips the robot off of her. Cas is scared, but Niko comforts her and tells her they need to move.

Niko tells Cas that the simulation was not real and Cas admits that she was about to give in. Niko comforts her and tells her that she needs her, so they keep walking. Niko tells Cas that the engine had been ripped out of the shuttle and they turn to see the Salvare, but Niko tells them that they could not use their comms; however, Cas says that they could.

Cas tries communicating with the Salvare, which William is able to pick up. William replies and Richard tells them that they need to get off the ship. Cas and Niko get ready to go back to the Salvare.

As Cas and Niko walk in order to fly, they see the Achaian waiting for them, who says she is not there to threaten them. She tells them that they need them to save them and Niko asks if she was really asking them for mercy. The Achaian tells them that if they really want peace, they should prove it. Niko tells them that if they want their protection, they needed to swear they would not harm Earth, which the Achaian does.

Niko and Cas make it back to the Salvare, where Richard tells them that Achaian technlogy is susceptible to high-density neutrino bursts. Niko asks how they could stop that so that they could save them in order to save Earth. She tells Richard that neither parties trusted each other, but if they saved them, then they would have earned the Achaia's trust. However, Richard does not know if they could even save them since each eruption had been stronger than the last one, so they needed to leave. Niko agrees, but says that they would not leave without the Achaia. She greets Dillion and William tells her that the only way to shield form neutrinos would be to use water, but they would need an enormous amount. Dillion suggests that they tow the Achaia out of range by rerouting the Salvare's artificial gravity, which Niko approves of.

Cas calls Niko and William to the observation deck and tells them that there was a system which required a bit of a detour, which had a planet that could be habitable. Cas wonders if Earth was even there anymore, so Niko asks William for a scan on the planet, which appeared habitable. Cas tells her that the Achaia had missed the planet because there was no Artifact, so Niko allows her to wake up the lead colonist.

Bernie asks Zayn if ze needs any help and offers hir breakfast, but ze tells him that ze is trying to fix his mess and asks him if he knows what he did, but he says that he believed it was the right thing to do. Cas tells Bernie that she would be waking up more crew, so she goes there.

Cas asks Zayn if ze would be able to save Javier, but ze does not really know and leaves. Bernie and Cas wake up the colonist and tell her about the planet they had found.

On the new planet, Cas, Bernie and Paula set up. Cas asks if they could farm nearby, but is told that there could be flooding. Cas says that she had not been looking for the planet, but Paula tells her that she had found out about Ian. She tries convincing Cas to live on that planet and help her out.

Bernie tells Cas and Paula that he though the habitat pod was going towards them, but it was not. Cas calls Niko and tells her what had happened, to which Gabriel simply responds that it was a better location for a colony according to his data and admits he had gotten ahead of himself.

Bernie tries reaching out to the *Salvare*, but gets no response as the team makes camp. Cas and Paula try coming up with a name for the planet, but Bernie is against that idea because he did not want to stay on the planet. Paula finds copper, which she says could help them make many things and injects Cas in order to tell her that she was pathogen-free. She tries to do the same for Bernie, but he does not want to comply since it had been three days. Cas convinces him that it was all okay and Paula calls her a natural talent at colonizing. Unbeknownst to them, they were being watched.

Cas and Paula are awoken by a loud crash on the shuttle. They follow the noise and while the Salvare finally makes it back to the planet. Paula shoots at the creature, which goes away.

Cas, Bernie and Paula make it back on the Salvare and tell Niko that they were doing okay. The new William presents himself while Zayn greets Bernie, but Paula needs hir to check a creature's blood and run tests on it. Niko asks them what they got, and Cas mentions that it seems they had found the future.

Niko, Paula and Cas check the new planet, which seems to accommodate humans because it is very close to Earth. Cas admits to drinking water, but they wait for Zayn to analyze the planet so they knew if they could actually live there. Zayn tells them that the blood was yellow, which meant an absence of hemoglobin, which was akin to an insect on Earth. Paula says that if they were the new apex predators, they could inhabit the new planet because they had to accept some could die. Niko says that they needed to fully analyze the planet.

William tells Niko that everything on the new planet seems to be okay, but she still does not accept him. Niko tells Cas to wake up the colonists so that they could start working on the planet and then to go back to the Salvare, but Cas says that she would need to help them as well.

On the new planet, Paula analyzes the wood on trees, while Cas tells a man that she was on the Salvare, but wanted to help them out. Paula reminds Cas that she told her that she was a good colonist. However, Cas does not want to leave Niko and wants to go back to Earth. Paula keeps trying to convince her, but a large wooden branch is thrown at them. They notice they are surrounded and a creature approaches them. It tries communicating with Cas, but Paula shoots it and it dies.

Cas tells Niko about the creature, which she describes as having war paint and using weapons. She uses a lot of information and says that they were intelligent life-forms, but Paula describes them as cave-people. Niko reminds her that to the Achaia, they were the cave-people. Paula says that they are not a threat to the creatures, but Niko tells her that the USIC says that they cannot colonize a planet with a preexisting civilization. She tells Paula to pick all their stuff up, which Paula does not like since the planet is perfect. Cas says that the planet is not for the humans, so Paula says that they do not need their help anymore.

Dillon tells Cas that he is an uncle, which she congratulates him for blandly.

Cas approaches Paula, who says she is almost ready to go, but asks Cas to do the shuttle pre-flight, which she says is the least she could do. Cas tells Paula that she thinks that maybe she is built for colony life and asks Paula what she doing. She finds Paula was launching the colony pods and gets a gun pointed at her.

Cas cannot believe that Paula is committing mutiny because she does not agree with protocol, but Paula says that she is not a psychopath who would eradicate an entire species. Niko tells Paula that they had found a way back to Earth, but she complains about the planet. Cas and Niko distract her and fight, while Cas tries deactivating the protocol. Niko ends up knocking Paula to the ground and orders her to be confined in her quarters. Paula asks if she has enough quarters for the twenty-four colonists and threatens to not leave that planet alive. Cas tells her to let Paula go so nobody else had to die, which Niko does in the end. Cas tells Paula to not fuck up and chooses to stay with Niko.

Richard tells Niko that they were at the high-tension loop. She tells William that starting over was not easy for her, which he understands. Cas tells them that Iara, Dillon and herself were all ready. Niko tells the crew that they know what they have to do and they prepare to go home. The wormhole opens and the Salvare starts going through it. They see Jupiter on the other side of the wormhole, but the wormhole started dissipating earlier than expected because the Salvare had too much mass. Niko orders everybody to get to deck 3.

Niko opens the comms and tells Cas that she was getting them home and asks her to tell USIC about what they knew about the Achaia and what to do to protect Earth. She tells Cas to tell her family that she loves them and wants Erik to understand. Cas promises that she would do all that and thanks Niko for everything. Niko tells Cas that she is proud of her and initializes manual override, which makes the ship separate.

On the Salvare, the crew is having a rough ride through the wormhole, but William tells Cas that they were orbiting Jupiter. Cas sees that Richard is not there with them, which Dillon finds meant that he was gone. William wants to open comms with Earth, but Cas does not allow him to do so because they need to get information to the right hands. Bernie says that they probably had already detected them, but Cas tells William to protect them from that.

Erik says that they had witnessed an entire ecosystem show up in weapons, proving that the Achaia had proven their good intentions. Cas, William, Bernie, Zayn, and Dillon watch the transmission and confirm that Earth was still fine, but they needed a plan to cloak data containing the information which included weaponizing neutrinos against Achaian tech and Cas wants to know if they would be returning in a good or bad way. Iara does not show up when they call her.

Cas visits Iara and tells her that Niko had chosen to stay, but Richard did not have the choice and Iara reveals that she had left Richard, but says that she would not have done something like that herself. All of a sudden, Iara calmed down and asked them if they wanted to know what Richard looked like trapped in a menacing voice. Iara says that she does not know what is happening to her and Dillon says that the Achaian code was consuming her. Cas tells Dillon to save her because she was their only shot at reopening the wormhole and saving both Niko and Richard.

Dillon cannot figure out how to eliminate the Achaian code, but Cas tells Iara that they would fix her so she could stay on the Salvare. Iara says that William does not need her, but he says he does. She says that no commander would accept her until Dillon says that maybe she could expose the Achaia, but she says the only solution is to kill her. She says that the Achaian code is searching for data on the neutrinos, which worries Cas.

Cas asks if Iara had been contained and William says that she was currently thinking that she was going to outer space, which Bernie confirms as a working trick. Cas asks what would happen if Iara found out she was just being sandboxed, but William tells her not to worry about it now even though he could feel her.

William tells Cas, Bernie, Zayn, and Dillon that he would be fine without them because he had to wake people out of soma. Cas tells them that they should keep information about Achaia vulnerability between them until they could figure out how to use it.

Erik tells Singh that he needs to get to Cas even if it is for a couple of minutes. However, Singh is approached by a soldier who tells her that she needs to leave the site since she no longer had security clearance. Erik complains to Mackenzie telling her that Singh had been taken, which he is told is due to leaks. She tells him that Seth was worried about the leaks, but Erik asks how Seth is relevant if he had an implant in his head, but the woman says that they want to communicate with the Achaia effectively. Seth approaches Erik and asks them if they are ready to receive the crew of the Salvare.

Cas, Dillon, Zayn, and Bernie make it back to Earth, where Bernie and Zayn talk about meeting hir mom. Mackenzie welcomes the crew of the Salvare, who get ready to see their loved ones, except for Cas. Zayn is told by hir father that hir mother had a disease.

Erik calls for Cas and says that Niko could probably be brought back and asks for contact with her, but Cas tells him that Iara is gone and asks if the Achaia would not help him since he had done so much for them. He says that he has not done a lot and says that the Achaia already have their emissary: Seth. Cas says that she knows about the implants and tells Erik that Niko wanted her to tell Erik that she loved both him and Jana very much. Erik tells Cas that Niko would be proud of her as she always was, and Cas proceeds to tell him that her mission was not over since she had stored intelligence with William, but changes the subject when Mackenzie approaches them.

Zayn, Dillon, Bernie, and Cas are brought to hidden, underground rooms, which Zayn calls illegal since they were being held there against their will. Cas asks to speak to whoever is in charge or a lawyer, but is ignored. When she walks into her room and sees a letter from the president thanking her for her service. However, she is locked into her room.

Dillon, Cas, Bernie get together in the breakfast room, which Bernie says is unfair. Dillon complains about USIC's new reintegration procedure. Zayn joins them and they say that they need to make it through the exit interviews. Zayn is a little distracted, but says ze is doing fine.

Erik tells Cas that he would conduct her exit interview. He asks why Javier had come home brain dead. Dillon says that Sasha and his Achaian implant had done that to Javier. Zayn says that ze took a chance with the surgery, which worked until they encountered the magnetar. Bernie says that while the implant was protecting Javier, it was also being destroyed faster than it could be repaired. Cas explains that they did not leave the magnetar because both Niko and herself were still on the Achaian ring at the time. They thought it would be best to remove Javier's implant since it was deteriorating, but Zayn says that they were not able to determine why. Erik says that it does not make sense and knows that something happened around the magnetar and tells Cas that all he wants is to complete Niko's mission. Cas tells him that they had all made sacrifices and leaves.

Cas gets a knock at her door; Erik says that he hopes he is not being followed and asks her what information she was withholding, but she says that she had not revealed anything to him. Erik asks her to remember what she had told him, but she says that she does not remember. Erik asks if she remembers anything about the magnetar and she thinks it is weird that she does not remember. Erik tells her that Seth had probably wiped her memory

Zeyn tells Bernie, Dillon, Cas, and Erik that she remembers the magnetar, but they know that Seth had gone into their brains to retrieve information. Zayn apologizes for having given information in order to save hir mother. Cas says that the Achaia had also offered her something, so she understands. Bernie says that the Achaia are helping them, but Dillon says that they need to follow Niko's orders. However, Bernie thinks Niko is dead; Erik tells him that Niko died so he could be there. They say that William is who knows all the information they need, so they say that they will race Seth in order to get there first.

USIC shows up at the hotel, so Erik gathers Cas, Dillon, Zayn, and Bernie so they could go. Erik tells them that they were going after them since they had talked to him. Cas wonders if they could download William, but Dillon says that the only people with that kind of storage capacity was USIC, so Bernie suggests the Salvare's supply shuttles.

Cas and Erik try to get into USIC, but Erik's security ID is not working. Once it finally works, he goes in with Cas, making it to the Salvare's supply shuttle.

Cas and Erik call for William, but he does not respond. Erik is surprised and tells Cas that he had never been in a spaceship before and also says that it was the closest he had felt to him since she had left. William hears Cas, but he cannot leave since Ursula and Seth are working on him. He asks Ursula why she is helping the Achaia and she says that it was because humans were murderers and they were meant to be liberated by the Achaia. She says she thought she could save the world and he tells her that she had made him, but she tells him about Gabriel. She wonders how many crew they had killed and says that she would let the aliens do it. William tells her that the information she had was the only thing that could save them from the Achaia, but she is still helping Seth and says that she would crack his encryptions and then delete him.

William reaches Erik and Cas, telling them that Ursula had located the data, but is brought back. Cas grabs an axe and both of them head towards Seth. Both of them fight USIC security, though Cas does a better job of it, so Erik is dragged away.

William calls Cas, telling her that Seth had opened the bridge to Earth. She jumps down from the ceiling and is told by William to distract Seth in order to have him weak and occupied. Ursula tells William that she wants to help, and offers to protect his code. William goes inside the implant as Cas punches Seth repeatedly, which makes him bleed.

William tells Seth that he was not a robot, and he was not a human, so he could hurt him. Seth leaves the Artifact and stops one of Cas's punches, choking her. Ursula tries getting William back out from the Artifact, while Seth approaches the implant that was going to be Erik's. William appears and says that perhaps he was too fast for him. Cas approaches Seth from behind and chokes him, but he says that even if they killed him, the Achaia would be there since they were pissed.

Niko and Erik call for William and Cas. Erik cannot believe it and yells out happily, while William also reports he is alive. Richard tells Niko that he would introduce himself to the soldiers while Erik tells Niko that she needs to talk to Cas and William because Seth said that the Achaia were on their way. Niko asks if the neutrino weapon is working, but William says that he has been struggling with it.

Cas drags Seth away while Erik understands how neutrinos worked on the Achaia with William. William says that they need more neutrinos, but whenever he did it, the magnetic confinement was overheated. Erik asks if they could back off on the accelerator beam, directed equal power into the cooling systems and then toggled between the two. Ursula, William, and Erik give the theory a go.

Niko and Ursula start fixing, while Cas is impatient. They work on it, but the Salvare detects a wormhole opening between Earth and Mars, which had at least one Achaian ring.

Cas tells Erik and Ursula that she needs the weapon, but they are not ready. Niko tells Cas, Erik, and William to abandon ship, but in the sky, they see a big explosion, which shocks her, Richard, Zayn, Bernie, and Dillon.

Niko, Richard, Bernie, Zayn, and Dillon are all in shock as they see that the Salvare had been blown up by the Achaia. Everybody is happy that the neutrino bomb had worked, and Niko asks if it could work again, but William says that they do not have enough time. Mackenzie asks what they could do now, and Cas says that there was only one way to find out, which would be using Seth.

Cas and and Niko see each other again and give themselves a hug. Niko says that she knew Cas would succeed, but she tells her commander that it was not over yet and tells her to be careful.

The president says that they are out of options, so Mackenzie says that they could accept to destroy the Salvare, and discuss the rest later. However, Niko says that they should not give the Achaia an advantage, telling him that they want to enslave them. She asks him to let her do her job, while Cas supports her, but the president says that if they did not make it in time, he would accept their deal. Niko says that she needs something that is not on Earth, so both her and Cas go to the shuttle.

Niko gathers the crew and tells them that they have 59 rings around Earth, which Dillon says is too much for them. Everybody discusses how they could beat the Achaia and agree that they need to think outside the box. Cas wonders if they do not want what they have, but would blow up their planet if they did not roll over, which they cannot understand. Niko says that they are seemignly impenetrable, but William says that they are not.

William tells the crew that their coding was DNA, but they now had an analysis into the Achaia at a microscopic level. Zayn asks if it was a model of their DNA, but is told that it was a real scan. Ze sees that the characters were an actual part of the makeup of the Achaia, which was odd. Bernie asks why the Achaia need a written language, which makes Erik think that those things were not the Achaia, but William's evolution. Cas wonders what the Achaia really are and wonder if the real Achaia had been killed off. Niko dismisses that as unimportant and says that they need to fight them. Dillon suggests using a computer virus, which Erik says could be possible. Zayn mentions a flesh and blood version of a trojan horse and says that they could implant the virus into one of them.

Zayn tells the crew that every member of the Salvare has a hard wire that goes into their brain stem for Soma so they could inject the virus using Soma. Once the Achaian melded with it, it would catch the virus. Niko asks if ze wanted her to let an Achaian feed off a member of the crew and Zayn says that just long enough to get it back down to the Artifact and release it along with the malware. Niko asks what she needs to do, but Erik does not want her to and Cas volunteers instead, saying she knew how to beat the Achaia as well.

Cas gets ready to have the virus implanted, but William says that they are having trouble implanting it, but it could be done later. Bernie and Zayn disagree, but William says that the Achaian only has moments left. However, the crew is out of options. In the meantime, Niko leaves.

Zayn tells Erik and Cas that Niko is generally doing fine, but she was in a coma. Zayn has no idea if that is due to the Achaia or an injury. Erik says that the Achaia are draining her, while Richard, Ursula, and William say that they were finally able to mask a human virus with the Achaian code. Erik says that they could not release the virus remotely, since he would go in there and let the Achaian take over him, knowing he does not have Soma hardware. William tells Erik that Niko wanted to do it herself, so Erik says that he would do it alone.

Cas says that she should be there instead of Niko, so Dillon tells her that when he lost his leg in the war, everybody in his unit had died and he had felt a lot of guilt, but it had not been his fault. Cas holds his hand after that.

Cas and Erik bring Niko to the Artifact, discussing who would be the one to bring her inside. She tells him to think about Jana, so Erik talks to the Achaian, telling it to open the door. Cas brings her in, but Erik kisses her before they go.

In the Artifact, Cas tells Niko that they are okay and the Achaian exits her body. Niko wonders if it had worked and the two of them are thrown around, hurting themselves. Cas tells the Achaia that they had done the right thing and asks for the same in return. The Achaia in Niko's mother's figure tells them that they are not going anywhere.

The Achaia tell Niko and Cas that they could not make demands of them as if they were equals. Cas asks about negotiations, but the Achaia reveal that they were only going to go their way, which meant peace on their terms. The Achaia tells them that they were primitive, and also says that they would spread like cancer unless they were stopped.

Niko asks Cas to say something as she is grabbed by the Achaia, who tells her that she had nowhere to go. The Achaia turns into Jana, who asks if she wanted to go back to Earth so she could abandon her again. Niko is taunted by the Achaia, who turn into the crew of the Salvare. She is slammed to the ground by the Achaia, who point a gun at Cas; they tell her that no human was innocent.

Erik sees as the Artifact starts splitting in half. Suddenly, the Achaian Niko was fighting starts feeling pain. Niko grabs its gun and points it at it, shooting it and destroying the Achaia. She grabs Cas and they leave the Artifact, which starts collapsing and is finally destroyed.

Cas tells Niko that she is fine and only has a concussion. Niko says that she would put her in command for the next mission. Dillon tells Richard that many different wormholes were appearing, but does not know of any natural causes for this. Niko wonders if maybe there were Achaian sympathizers and needs William, who cannot be reached. Niko says that the Salvare had made it, but Richard had not been able to find it.
## Personality

Cas in both season 1 and 2 show signs of being both complacent yet strong

## Appearance

**Season One (9/10)**

* *Through the Valley of Shadows*
* *Nervous Breakdown*
* *Guilt Trip*
* *A Mind of its Own*
* *I Think We're Alone Now*
* *Living the Dream*
* *How the Light Gets Lost*
* *Heart and Soul*
* *Hello*

## Gallery

See also: Category:Images of Cas Isakovic
* Promotional
* Season 1 Screencaps

**"Episode #1.2"**

**"Episode #1.3"**

**"Episode #1.4"**

**"Episode #1.5"**

**"Episode #1.6"**

**"Episode #1.7"**

**"Episode #1.8"**

**"Episode #1.9"**

**"Episode #1.10"**