Power Rangers S.P.D. is the 2005 season of Power Rangers that tells the story of the fight between the Power Rangers of the Space Patrol Delta police force and the Troobian Empire in the year 2025.
 The S.P.D. (or SPD) Power Rangers are characters and heroes in the Power Rangers universe, and the primary protagonists in the television series Power Rangers S.P.D.. This series is set in the year 2025.
 The S.P.D. Rangers that appear in the series are labeled B-Squad, a weak team that are initially a backup team as their name suggests. They are promoted to the Earth's primary line of defense and granted Ranger status after the A-Squad vanishes, as well acting as tutors for the D-Squad Cadets. They are an integral part of the Space Patrol Delta organization.
 Jack Landors (played by Brandon Jay McLaren) is the S.P.D. Red Ranger. Once a homeless street thief alongside his best friend Z, Jack volunteered to become the Red B-Squad Ranger in order to save Z's life as well as those of the other Rangers and took over as team leader, to the ire of Sky Tate. At first, he took his position as team leader very lightly, but has since proven he is a very capable and effective  leader, albeit one who often clashes with the chain of command as well as bend the rules sometimes (giving Sky a head start to deal with a former partner by "reciting" a regulation when he's not allowed to pursue on his own). He formed a slightly uneasy but respect-based relationship with Sky, taking tactical suggestions from him in the field and helping him deal with his issues regarding Mirloc and his father.
 After his encounter with the volunteer Ally, he realized that, while he liked being a Ranger, what he really wanted to do was go back to helping people on the streets - the conflict of these two interests led to him nearly botching the mission against Delex. Following the destruction of the Magnificence and the containment of Gruumm, Jack left S.P.D. to work with Ally full-time and Sky took his place. Despite his casual attitude, he loathes having to say goodbye and left S.P.D. without telling the rest of B-Squad; despite this, they remain close.
 It is possible that he rejoined his teammates during Power Rangers Super Megaforce, as all five B-Squad Ranger powers were employed during the final battle with the Armada.
 While unmorphed, his genetic power enables him to become intangible and pass through any object. As the Red Ranger, he has exclusive access to a Battlizer and also control over two separate Zords and S.W.A.T. Mode. He wields the Delta Blasters and is an impressive sharpshooter. His uniform sports the number 1.
 Jack doesn't know when he was born. Syd, however, offered to share her birthday with him.
 Schuyler "Sky" Tate (played by Chris Violette) is the S.P.D. Blue Ranger and second-in-command who was originally a stickler for rules. Sky is top on B-Squad on weapons and fighting, and believes he should be the Red Ranger just like his father was. Unfortunately, his pride, and lack of faith in his teammates, citing such reasons as Syd is a girl, causing him to fail a test of character, and as a result Commander Cruger picks him to be the Blue Ranger.
 When Sky faces off against Mirloc, the one responsible for the death of his father, Jack thinks Sky should be the one to bring him in as the Red Ranger. Although it was an honor to be the Red Ranger, Sky realized that heroes come in all colors. After going through extensive S.W.A.T. training on Zantor to acquire S.W.A.T. Mode, he discovers the importance of his team. With teamwork, they are able to even defeat the corrupt A-Squad. Over time, he learns the values of following rather than leading, and when put in a temporary leading position, impresses even Cruger with the skills he learned during their battles.
 With Jack leaving S.P.D., Sky has grown into a great leader and has learned to accept his teammates as equals. Cruger chooses him to step up as the new Red Ranger. When Cruger becomes Supreme Commander, Sky replaces Cruger and is promoted to Earth Commander and Bridge replaced Sky as the S.P.D. Red Ranger.
 He may have reassumed his Blue Ranger powers to join the Ranger army in Super Megaforce.
 While unmorphed, his genetic power allows him to create force fields.
 Bridge Carson (played by Matt Austin) is the S.P.D. Green Ranger. Bridge might appear slow at times, but he is a computer genius, a master mechanic, and much more. He might be gullible, but he also has a heart of gold. People underestimate Bridge, but he always manages to come through with his quick-thinking. He is well known for his love of "buttery" toast, and one of his more amusing behaviors is an apparent inability to say the word "buttery" without wiggling his fingers in front of his mouth. The phrase "buttery" was first mentioned by him when offering toast to the Yellow S.P.D. Ranger, Z, who formed a firm friendship with him; as evidenced when she defended him, when Sky blamed Syd's confusion and Bridge's ramblings. While thinking, he will sometimes do a handstand to help him think, or so he says. He is also Jewish since in "Walls" he tells Jack that he celebrates Hanukkah when Jack says that Christmas has come early upon Bridge and him receiving new patrol bikes.
 Bridge takes it upon himself to over-analyze any situation and sometimes lacks confidence. Bridge endures S.W.A.T. training on Zantor with the others to achieve S.W.A.T. Mode. Bridge relies more on intuition than any other Ranger and is the first one to sense that something is wrong with A-Squad. As time goes on, the other Rangers come to respect how he always comes through for them and he becomes more confident.
 While unmorphed, his genetic power gives him a form of psychometry and the ability to scan and read auras and energy signatures. He has no control over this ability, and consequently wears gloves most of the time. As the series progressed, Bridge's power evolved to include tracking thoughts, since, as he stated, thoughts are energy.
 After Jack left S.P.D., and once Sky was promoted to Red Ranger, Bridge was promoted to Blue Ranger. After Commander Cruger is promoted, Sky is promoted as well, leaving Bridge as the Red Ranger. He was later called upon to join veteran Rangers Adam Park, Tori Hanson, Kira Ford, and Xander Bly in battling alongside the Operation Overdrive Rangers against the villainous alliance led by Thrax.
 He may also have become the Green Ranger again with his predecessors reclaiming their Red and Blue powers for the final battle with the Armada in Super Megaforce.
 His assigned S.P.D. number is 3; he is later promoted to 2 and eventually to 1.
 Lina Song (played by Malika Lim)
 Elizabeth "Z" Delgado (played by Monica May) is the S.P.D. Yellow Ranger. When Z was younger, she was considered an outcast at school due to her genetic power. She ran away and upon being attacked by a vicious monster, she was saved by a disguised Anubis Cruger. Eventually, she began living on the streets. It was there that she met her best friend Jack and began stealing. She eventually grew tired of that profession and wished to be part of something bigger, which led to her being drafted into the S.P.D. B-Squad.
 Despite their differing personalities, she formed a firm friendship with both Bridge and Syd, often teaming up with the Pink Ranger in battle. She defended her when Sky blamed Syd's confusion and Bridge's ramblings. Easy-going and somewhat sloppy, she is a viciously determined fighter and, due to her past alienation, took it upon herself to reach out to young Sam.
 Her genetic power of duplication allows her to become a virtual one-Ranger army in the blink of an eye. Z has the power to make several copies of herself when needed.
 She has a long history with Piggy and appears to trust him as a friend, often going to him for underworld information or help even when his duplicitous nature was obvious. When he was revealed to be openly working for Gruumm, Z was shocked that he could have betrayed them.
 Through S.W.A.T. training on Zantor, Z learns to get over her differences with Syd and together as a team, the Rangers take down a corrupted A-Squad. When Jack leaves S.P.D., Z stays with the Rangers and continues to live out her dream of protecting the innocent.
 She and her teammates later appeared as part of the Ranger army in Super Megaforce.
 Her assigned S.P.D. number is 4, and she is never shown to have been promoted after Sky becomes Red. She is good at tap dancing and jazz dancing.
 Sydney "Syd" Drew (played by Alycia Purrott) is the S.P.D. Pink Ranger. Her parents worked at S.P.D. and were involved with the creation of the Delta Morphers, which altered Syd's DNA, giving her her genetic ability. Her family is very wealthy. She was on the B-Squad along with Sky Tate and Bridge Carson.
 Her life before S.P.D. is not clear. Multiple references during the show imply that she has many talents, including being an excellent fencer, pop star, and model. Despite her flagrant vanity and occasional selfishness, she is very caring and compassionate, and is often the first to stand up for someone when they are being treated wrong. Though she and Z are constantly fighting, deep down they care for each other and very frequently team up in battle.
 When unmorphed, her genetic ability allows her to change her hand into any material she needs.
 Syd and her teammates later took part in the Megaforce Rangers' final battle with the Armada. 
 J.J. OLIVER (played by Ricardo Hurtado)
 Sam (played by Aaron James Murphy as young Sam, voiced by Brett Stewart as the Omega Ranger, and voiced by Yuri Lowenthal in the Power Rangers: Super Legends video game) was once a very lonely and misunderstood street orphan whose mother died in a tragic incident and whose genetic powers (of being able to teleport objects) made him a constant target for bullies. His desperate search for friends led him to be manipulated by Mora and her newest creation Bugglesworth, who turned people into dolls for Mora to collect. While the other Rangers were quick to judge Sam poorly, Z realized that Sam was not evil and just wanted to fit in. Although it took a lot of convincing, Sam eventually agreed to stay with his new friend and the other Rangers at the S.P.D. Academy.
 In the year 2040, Sam was chosen by S.P.D. to become the Omega Ranger and charged with a special mission: travelling back through time to 2025 to stop the rogue Morgana from destroying the Rangers and eventually Earth, thus preventing the disaster that has befallen his world. He destroyed Shorty upon the start of the deciding battle and drove off Morgana and Devastation however he refused help believing the Rangers of this time too outdated to help him. He later learned he was wrong when the other Rangers rushed to his aid when he was in trouble and together they saved the future by riding the Delta Squad Megazord on the back of the Omegamax Cycle and blasting Devastation's robot until it was destroyed and then capturing him. This battle taught him the value of teamwork. However, passing through the time warp heavily altered his human form, reducing him to a floating orb of pure energy. Due to this setback, his only remotely human form is his Ranger form. As Kat searched for a way to send him back to the future, he assisted the B-Squad Rangers in their battle to save Earth.
 Omega joined the B-Squad to prevent Emperor Gruumm's invasion and brought with him a powerful array of futuristic equipment including the Uniforce Cycle, a Zord known as the Omegamax Cycle, and an Omega Morpher that - in addition to increasing his strength (Muscle Mode), allowed him to perform various feats including temporal manipulation (Hyper Mode), fire bursts of electricity from his palm (Electro Mode), and an ultimate finisher attack of shining energy (Lightbeam Mode). Like the S.P.D. and Patrol morphers, the Omega Morpher can also grant access to the Judgement Mode function. His suit brandishes the Roman Numeral for six, "VI".
 When some friends of Piggy stole the S.W.A.T. technology, Sam's technological advancements were outmatched, but, as he is "the force from the future", he was always at the Rangers disposal when they needed him.
 During the final battle against Gruumm, Sam's old friend Nova Ranger came looking for him. After the battle ended, the two of them returned to the future. Presumably she was able to return him to human form as he unmorphed for a moment before traveling back to the future.
 He apparently joined his teammates in traveling to the past in Super Megaforce to battle the Warstar Armada alongside other past Rangers.
 Anubis "Doggie" Cruger is a member of the dog-like Sirian race from the planet Sirius, and was a member of the original Space Patrol Delta, training in the Academy alongside future criminal Icthior. He led the SPD forces against the Troobian Empire's invasion, fighting and scarring Emperor Gruumm by shearing off his right horn, before General Benagg kidnapped his wife Isinia and managed to bring down Cruger from behind. The battle was lost and all the Sirians except for Cruger and Isinia were killed. After that, Anubis made a vow to never fight again and left for Earth, thinking his wife was lost.
 On Earth, Anubis founded the S.P.D. Earth Academy and trained the elite S.P.D. Ranger squads. He sends the A-Squad Rangers to the Helix Nebula to fight at the front line against Grumm, not realising this was a trap by Gruumm to take out Earth's front line of defense. When he hears that Gruumm is on his way to Earth and could not contact the A-Squad, he promotes the B-Squad Rangers to active status and gives Schyler "Sky" Tate, Bridge Carson, and Sydney "Syd" Drew a set of S.P.D. Morphers. They were soon joined by Elizabeth "Z" Delgado and Jack Landors.
 Cruger is portrayed as a good judge of character. He gives both Jack Landors and Elizabeth Delgado, two criminals, a chance at redemption by making them Rangers, and sees the potential in Boom when he drops out of the Academy.
 Anubis will go to any lengths to protect those he values and loves; for example, when Dr. Manx was abducted by General Benaag, he broke his own vow of peace and became the Shadow Ranger (suit number 100). He is armed with his Patrol Morpher (his morphing call of "S.P.D. Emergency!" is the same as the other S.P.D. Rangers, but his morpher is different, as the normally white SPD text is black), the Shadow Saber, and the Delta Command Megazord (in reality, the S.P.D. Base). As the Shadow Ranger, he has proved to be a great asset to the B-Squad Rangers. He takes a very hardline approach to discipline and training, once deliberately letting the Rangers see he was watching them being defeated and not intervening in order to make them stop relying on Shadow Ranger to solve their battles for them. Sometimes he can go too far, at which point Kat will argue against him.
 Cruger is not fond of his superior officer, Supreme Commander Fowler Birdy. He demonstrates this in his referring to Birdy as "that overstuffed pelican". The two do not have similar strategic styles, and this temporarily resulted in Cruger being dismissed and relieved of command duty. However, Birdy changed his tune forever when the Shadow Ranger showed up to save him from Gruumm. Cruger did possess a high level of respect for previous Power Rangers, expressing particular pleasure at working with Tommy Oliver when their two teams worked together against a time-traveling Gruumm and Zeltrax. Cruger erased the memories of most of the Dino Rangers to prevent contamination of history, but- after agreeing with his Rangers that it wasn't fair that only the Dino Rangers should forget their encounter- he then erased B-Squad's memories and his own before they returned to the future.
 Although he believed that his wife was dead since the Battle of Sirius, an encounter with his old enemy General Benaag cast doubt on that belief. When Cruger used his Morpher/judgement scanner for abducting his wife, the morpher "acquitted" Benaag. Later, when his old rival-turned enemy Icthior claimed that Isinia Cruger was still alive, Cruger wasn't sure what to believe. He never told the B-Squad about his marriage to Isinia or about her in general— keeping his painful secret from everyone but Kat.
 The question was answered after he was taken captive by A-Squad. He saw her being held captive onboard Gruumm's spacecraft. Also when the A-Squad returned he started to ignore B-Squad and they thought that he was just demoting them on purpose and was going to ignore them again although he presumably did this because of procedure. Dr. Kat Manx admitted to the B-Squad when they went to fight the A-Squad that he told her that they were the best squad that he ever had the pleasure of working with showing them just how highly he really thought of them.
 After B-Squad was thrown into captivity along with Cruger, they all escaped with Piggy's help. B-Squad returned to Earth while Cruger morphed and engaged Gruumm in battle card-capturing Mora along the way. Cruger came out the winner and rescued Isinia while Grumm apparently fell to his death, but he had one more task to complete. Cruger was tasked with opening an access panel in the left arm of the Magnificence, which would allow the S.W.A.T. Megazord to destroy it with a maxed-out laser blast. He did, and the Megazord fired, causing the Magnificence to implode, destroying Omni and saving Earth and the universe. Cruger was thought dead, but he and Isinia survived. This discovery overjoyed the Rangers.
 Gruumm survived as well, and engaged Cruger (who was unmorphed) one last time, only to lose his left horn and be contained. Following the battle, he promoted B-Squad to A-level, only to have them refuse because ultimately, they were the B Squad, the team that had come through their trials together. Cruger made Squad B be the highest Ranger level at S.P.D. on the spot, saying then that there would be no A-Squad. He also promoted Sky to Red Ranger status, and Bridge to Blue Ranger status following the departure of Jack. There was no mention of a new Green S.P.D. Ranger.
 In the first half of the two-part Operation Overdrive episode "Once a Ranger", it is revealed that an unknown amount of time after the finale of S.P.D., Cruger is promoted to Supreme Commander when Fowler Birdy retires, bringing about the subsequent promotions of Sky Tate to Commander of S.P.D. Earth, and Bridge Carson to B-Squad's leader as the Red Ranger. It is unknown if he kept his Shadow Ranger powers, or if he passed them down to Sky when Sky was promoted to his old position.
 The Shadow Ranger was also not among the veteran Rangers who appeared in Super Megaforce.
 Cruger is performed by John Tui (who later portrayed as Daggeron in Power Rangers Mystic Force), and voiced by Darryl Kurylo in the Power Rangers: Super Legends video game and Kyle Hebert in Battle for the Grid.
 Dr. Katherine "Kat" Manx (played by Michelle Langstone) is the technical expert for Earth's S.P.D.(Space Patrol Delta), a master of many sciences, and the S.P.D. Kat Ranger. She is a humanoid cat-like alien of an unknown world. Despite her youthful appearance, Kat is 147 Earth years old. Kat serves as the chief technologist in S.P.D. and was responsible for the invention of all of Earth's S.P.D. technology, from the Judgment Scanner to the Delta Command Megazord. During all S.P.D. missions, she can be found in the Command Center running ops and providing scientific assistance to the Rangers.
 Kat was part of the early days of Earth's SPD branch, when it was a top-secret organisation in 2001, the same year that the Time Force season was set during. She was one of several scientists, along with the B-Squad's parents, who worked with highly energized chemicals that led to the B-Squad's mutations. Kat is also a good friend to Commander Cruger, though she considers him a "stubborn old dog", and provides a reasoned argument against his more emotional decision. When General Benaag captured her, Cruger accepted the Patrol Morpher that she had given him and became the Shadow Ranger (Producer Greg Aronowitz has stated in a podcast interview that Kat was in love with Cruger and vice versa, but that he never acted on it; the comment comes 16 minutes into the interview).
 Kat serves as a mentor to Boom, a reject from the academy. Despite his apparent ineptitude, her teaching turned him into a technical expert.
 Although Kat is a scientist by trade, she is capable of fighting when called upon. Her cat-like physiology makes her exceptionally agile, and she is a skilled fighter. She led the defense of the Space Patrol Delta Base against the final Troobian invasion.
 In "Katastrophe", Kat was granted the use of her own (temporary) Delta Morpher (given to her by Commander Birdy) to become the S.P.D. Kat Ranger. The Kat Ranger costume is half-orange and half-white with cat-like ears, making her the first 8th Ranger, and the first Ranger to share the same first name with a previous Ranger, Katherine Hillard. The Kat Ranger also marks the first time that a Power Rangers team has had three female rangers on one team. Her powers expired after an hour. Her costume was similar to those of the B-Squad, but she did not have a number on her Ranger form like the other members of S.P.D. Instead, she had a heptagon as her chest symbol.
 As Kat Ranger, she created blinding auroras and threw feather-like "Cat Stunners". She wanted desperately to help out against an enemy called Mooney who was a former classmate of hers and was given the Morpher to fight. She captures Mooney herself after stopping his giant robot. In Endings Part 1 she was amongst those captured by Broodwing's forces and was put into a cell alongside Boom.
 After Boom gets them out by summoning RIC she disables the Delta Command Megazord stopping Broodwing and allowing the B-Squad to capture him. In Endings Part 2 she fights in the final battle with Grumm's forces and retreats inside when the Nova Ranger shows up. She also witnesses the final showdown between Grumm and Cruger.
 Nova Ranger is a fictional character in the TV series Power Rangers S.P.D. She is voiced by Antonia Prebble while her human form was portrayed by an uncredited actress. Her numeric S.P.D. insignia is the Roman Numeral for 1,000 which is the letter "M".
 During the final battle with Gruumm, the B-Squad Rangers had left the S.P.D. base relatively unguarded, save for Dr. Kat Manx, Boom, the Omega Ranger, and the S.P.D. cadets. Grumm's forces were overpowering the S.P.D. forces, when a time-portal suddenly appeared, and a silver-colored Ranger stepped out. She identified herself as the S.P.D. Nova Ranger. Nova had been Sam's partner and ally in the future and possibly love interest, and had been searching various timelines in her effort to locate him. With her help, the S.P.D. base was protected from harm. A second time portal was opened after the battle ended and the unmorphed Nova Ranger, along with the unmorphed and now-fully-human Omega Ranger, returned to the future.
 Nova Ranger had a blue-and-gold device identical in appearance to the Omega Ranger's Morpher, except for the colour scheme,  which was called the Nova Morpher. Like the Omega Morpher, Nova Ranger's morpher acted as her only weapon in combat and had an Electro-Mode. However, unlike the Omega Morpher, the Nova Morpher appeared to have better time traveling capabilities and the power to restore Omega Ranger to human form.
 Delta Runners are five zords that are dispatched from the Delta Base. Originally piloted by A-Squad and then later by B-Squad.
 S.W.A.T. Flyers are five zords that are designed to be used with the S.P.D Rangers' S.W.A.T. Mode.
 Short for Space Patrol Delta, S.P.D. is an interplanetary police force that oversees law in the different areas of outer space. S.P.D. maintains the peace where they train and deploy their own teams of Power Rangers, who are equipped with the latest technology.
 Fowler Birdy (portrayed by Paul Norell) is the bird-like Supreme Commander of S.P.D. and Commander Cruger's superior. However, the two do not get along at all, as indicated by Cruger referring to Birdy as an "over-stuffed pelican." Arrogant and supremely blunt, he does not tolerate insubordination and views Gruumm's victory on Sirius as an embarrassment.
 When Birdy came to Earth to inspect S.P.D.'s Earth headquarters, his style of tactics clashed with Cruger's (which was to keep the Rangers as a team because that's how he thought they worked best). This led to Cruger's brief expulsion from S.P.D., during which Birdy took command of the Delta Base. After foolishly splitting up the Ranger team, he went out personally to fight Emperor Gruumm and was quickly overwhelmed by Gruumm's superior skill. Luckily, Shadow Ranger, acting against orders, showed up on his ATV and drove Gruumm off. Fowler was at first enraged, but changed his tune after Cruger drew a salute from his fellow Rangers. Birdy departed, commending Cruger for his actions and telling him that the galaxy is depending on him.
 Birdy appeared again when Morgana launched her all out attack on the Power Rangers. Birdy told them that Galactic Command is now aware of their plight and that they couldn't respond on such short notice. Birdy told them that even if they did, they'd fear that they might fall into Gruumm's trap. Birdy concludes that they were on their own for this one and wishes them good luck.
 He later appeared to promote Dr. Manx (which she later refused) to a position at Galaxy Command, and when she wanted to stop Mooney, he gave her the Kat Morpher to go into battle herself.
 In the final S.P.D. episode Endings Pt. 2, Fowler Birdy, Sergeant Silverback, and some unnamed S.P.D. officials (consisting of an unnamed lion-like alien, an unnamed octopus-headed alien, an unnamed red ape-like alien, and an unnamed exotic bird-like alien) were among the S.P.D. reinforcements to assist in the final battle against the Troobians, apparently having decided to go into battle himself.
 In the Operation Overdrive team-up story Once a Ranger, Bridge reveals that at some point after the finale of S.P.D., Birdy retired from his position (and moved to Miami). Cruger was promoted to his position as Supreme Commander, so Sky then was promoted as the Shadow Ranger and as the Commander of S.P.D. Earth, and Bridge was promoted as the Red S.P.D. Ranger.
 Sergeant Silverback (performed by John Tui) is an S.P.D. training instructor based on the planet Zentor who looks like an alien gorilla. He is a (rather odd) friend of Anubis Cruger, who sends B-Squad to him following their lack of teamwork. Silverback put them through their paces, training them and strengthening the bonds of friendship between them. After receiving his approval, he sent a communication to Cruger only to learn that he was in trouble. Dismissing B-Squad once and for all from Zentor, he gave them the S.P.D. S.W.A.T. Truck, allowing them access to S.W.A.T. mode.
 Sergeant Silverback's only companion is an older model S.P.D. canine robot reminiscent of R.I.C. It seems to be modeled after a bulldog. He speaks as a stereotypical military officer (reminiscent of military actor R. Lee Ermey).
 In Endings, Part 2 he was among several reinforcements to help S.P.D. in their final battle against the Troobians. He also brought his R.I.C. with him, and another S.W.A.T. truck to assist in the battle.
 Boom (portrayed by Kelson Henderson) is the lab assistant of Kat Manx, and is always willing to test out her latest inventions. Boom attended S.P.D. academy, but washed out due to not having the right stuff.  However, he was of interest to Cruger, who convinced Kat to let him serve as her assistant.
 Boom never told his parents about washing out. He managed to convince them that he was the "Orange Ranger", which came back to haunt him when they came to visit. He was forced to don a mock-up costume and team up with the B-Squad, putting the true Rangers in trouble. He then returned to what he knew best, and finally told his parents about his real job: a lab assistant for Kat's inventions.
 During the two-part finale Endings, Boom plays a somewhat vital role. By summoning R.I.C. in Part 1, Boom is able to free himself and Kat in time to shut down the Delta Command Megazord and stop its attack on the Rangers. In Part 2, Boom gives a rousing speech to the SPD cadets that gets them to fight the Troobian invasion when the Rangers are unavailable. Boom fights briefly in the battle, but retreats inside with Kat when reinforcements later arrive.
 Short for Series One Processor Hyper Intelligent Encryptor, S.O.P.H.I.E. (portrayed by Natacha Hutchison) is a computer programmer and cyborg. She enrolled at S.P.D. to use her skills for good, hiding her cyborg origins (as cyborgs are highly prejudiced against). When the S.P.D. Rangers discovered her secret, she was unfairly expelled from the academy and pursued by Valko. After escaping from him (with the help of Cruger who heard her cry for help and as the Shadow Ranger card-captured him), she returned to S.P.D. and helped activate the Delta Command Megazord. Realizing that she meant no harm and what an asset she could be to S.P.D., she was given a job as a programmer at the Theta Quadrant.
 The lowest-ranking squad, this squad consists of cadets who trained for eventual promotion to active status as C-Squad and up. They are trained and advised by the B-Squad. The D-Squad consists of S.O.P.H.I.E., 3 Caucasian Males, and an Asian Female.
 Piggy (portrayed by Barnie Duncan) is a bird-faced informant who works for whoever pays him the best, or threatens him for it (including SPD, Emperor Gruumm, and/or Broodwing). He spends much of his life on Earth as a homeless bum, eating garbage and developing connections with the underworld. He has a form of friendship with Z who has multiple times been shown to trust Piggy more than anyone else does - trusting him to guard the proton accelerator in "Beginnings", taking Kat to get a quantum enhancer from him in "S.W.A.T." and appealing to his better nature (and thanking him) when Bridge was in danger in "Missing". Unknown to most, however, he was in contact with Emperor Gruumm, who he appeared to serve directly, and was personally responsible for handing Gruumm the technology he needed to reach Earth.
 In "Shadow", Piggy wins the lottery and opened his own trailer cafe that brings in lowlife patrons from many different planets. While Piggy otherwise lives a very comfortable life, when the Rangers show up at his cafe, his customers flee, which irritates Piggy to no end; to his customers, S.P.D. are the monsters to fear. His frequent jesting comments towards Syd make some believe that he had a minor crush on her.
 He quickly finds himself caught between aiding either S.P.D., Gruumm, or Broodwing multiple times, such as stealing S.W.A.T. technology for both villains, and several times giving advice & information to the Rangers, contacting Gruumm/Broodwing to tell him about the Rangers being on their way, and then contact Broodwing/Gruumm to tell them about the other's plot! Both Broodwing and Gruumm saw Piggy as being key to their plans because of this. In Endings, he ended up leading the B-Squad into a trap where they were captured by Emperor Gruumm, much to Z's shock. When Piggy asked if he did the right thing, a lightning bolt destroyed his cafe and, taking the hint, Piggy sneaked onto Gruumm's ship disguised as a Krybot and freed them returning to Earth with them on the SWAT Flyers. He participated in the final battle against the Troobians and, afterward, joined Jack and Ally in their business of giving clothes to the homeless. Also Jack gave him credit for what he did saying none of them would be there (in front of SPD after the battle was over) if it hadn't been for him.
 He makes a cameo in the Power Rangers Mystic Force episode "Ranger Down", because his actor was available since he also played Toby. He reveals that he just came from another galaxy, establishing himself at least 19 years before anyone else arrived on Earth. When the cat genie Jenji stumbles upon the same alley Piggy is in, Piggy (after discouraging Jenji from a life of crime) predicts much of SPD that he explains that his dream is: "to win the lottery and open a restaurant... with wheels, called "Piggy's", and says "in 20 years this place will be crawling with aliens...".
 Ally Samuels (played by Beth Allen) is the daughter of the Samuel Clothings owner. She first appears in "Resurrection" where Jack mistakes her for robbing a truck only to learn that she is unloading the truck's contents for Samuel Clothings (which helps out the city's less fortunate). Jack later apologizes to her for the misunderstanding and she was able to forgive him.
 In "Endings," Jack resigned from S.P.D. and joined Piggy into helping Ally and the other workers of Samuel Clothings, because he wanted to be part of something bigger than himself, despite having been doing that already.
 The Troobian Empire is a galactic empire and warlike army in the service of Emperor Gruumm. The term Troobian refers to any being that serves under Gruumm (as stated by Bruce Kalish).
 Gruumm's forces travel in the Terror Spacecraft that they use to travel throughout outer space in its journey to conquer and destroy planets. Inside, everything is green, dank, and skeletal.
 Information about them can be found below.
 Omni (voiced by Geoff Dolan) is secretly the power behind the throne and de facto leader of the Troobians. He is a giant brain housed in a tank in a room on Gruumm's spacecraft. He has a single eye on a tentacle-like appendage. He was mentioned on a few occasions throughout in the season, but was finally revealed at the end of the episode Insomnia, making Mora pledge her allegiance to it. In Endings, Part 1, he not only "spoke" for the first time (berating Gruumm over his petty feud with Cruger), but his name was revealed.
 Omni's reason for attacking Earth was to drain its resources for a weapon in development that he refers to as The Magnificence, a colossal biomechanical body for himself that Gruumm created with the stolen resources. Once the Terror Spacecraft locked in, Omni was connected to his body and used it to fight the S.W.A.T. Megazord, having the upper hand until Doggie Cruger opened an access panel from the inside, allowing the Megazord to deliver a maxed-out laser blast, causing the Magnificence to implode and taking Omni with it.
 Omni possesses psychic powers and is able to both talk to & harm Gruumm from a distance, as well as brainwash people into serving him. In his Magnificence, he is large enough to hold the Megazord in his hand and wields incredible destructive power.
 In an interview (9:26 in), Greg Aronowitz stated that "Gruumm has always been Omni's puppet... [Gruum] has power, but he has issues and he has weakness, and Omni has taken advantage of that for as long as time can remember." 
 Emperor Gruumm (portrayed by Rene Naufahu  who would later  be cast as Mentor Ji in Power Rangers Samurai) is a figurehead who serves as the de jure leader of the Troobians  alien race whose ultimate goal is to conquer other worlds.  Gruumm is relentless and nothing will stand in his way to conquer the universe.  He previously destroyed the planet Sirius (home world of Commander Anubis "Doggie" Cruger), and in 2025 he launched an assault on Earth.
 Gruumm's main strategy is to overwhelm and devastate a planet with constant, large-scale assaults and then drain the planet of its resources, as shown in the flashbacks to the Sirian invasion, and used such tactics on the Helix Nebula simply to draw the A-Squad into an ambush. His highly destructive tactics show life means little to him, and it was initially unclear why he wasn't using such tactics to conquer Earth except on rare occasions, and why he allowed Broodwing to battle the Rangers for him on several occasions. It is briefly shown that his ship can even destroy a planet from orbit. He also was shown repeatedly talking to either himself or an unseen entity whom he referred to as "the Magnificence". It became clear later on that Gruumm had been working off a long-term plan, intending not to leech and destroy Earth but instead to use its resources - which he looted over the course of the season - to construct a body for Omni, a higher power who he fears and worships.
 Emperor Gruumm has two aides, Mora (later Morgana) and Broodwing. He has a bitter hatred for Cruger, who cut off his right horn in the battle for Sirius. He is also the most powerful warrior among the Troobian empire, as proved in his victories over the B-Squad Rangers and Supreme Commander Fowler Birdie.  His main weapon is a staff that shoots energy, and he also rides a motorcycle with laser cannons. Gruumm has the ability to use telepathy and shapeshift into a selected human form. In battle, he has shown the ability to decimate the Rangers, defeat Commander Birdie and also harm Zeltrax, though Cruger has shown the ability to defeat him.
 As Omni's master plan came to fruition, Cruger escaped from a cell onboard Gruumm's ship and the two engaged in battle. Although Gruumm was thought to have perished along with the Magnificence, he survived and engaged Cruger (who was unmorphed) one last time, only to get his left horn cut off after being easily defeated. He was then contained.
 He appears in the Nintendo DS version of Power Rangers: Super Legends as the main villain who has set his sights upon the myth of the Hall of Legends, the resting place of the collected energies of Power Rangers across time. In his twisted mind he envisioned a world where his enemy's power is not only stolen, but used to make him a living god over all creation.
 Broodwing (voiced by Jim McLarty) is a three-eyed vampire bat-like alien who is encased in an artificial environment, as demonstrated by the jar on his head. He served as the weapons dealer for the Troobians. He is an emotionless criminal who cares about nothing except money. He supposedly works for Emperor Gruumm, but has been known to work for other aliens as well. He is often forced to play with Mora, much to his displeasure. Broodwing is the source of the rare Orangehead Krybots, as well as providing Gruumm with giant robots for his monsters and Blueheads. Broodwing also has control over a rare race of bats, whose bite can cause beings to grow huge. Shortly after the arrival of Omega Ranger, Gruumm began ordering Broodwing to provide his services while refusing to pay for them. This did not sit well with Broodwing, whose main motivation has always been money, so he began plotting against Gruumm and attempted to conquer Earth first in order to one-up him. For a while, Broodwing was actually behind more attacks on Earth than Gruumm was. One of his assaults involved bringing the Dino Rangers from the past, planning to force them to do his bidding so he could destroy the SPD Rangers.
 When Cruger was kidnapped, Broodwing took advantage of this and invaded the Delta Base with the intent of using the Delta Command Megazord to destroy Newtech City, but he was arrested and contained by the Canine Cannon when the plan backfired.
 Morgana is a servant of Emperor Gruumm. Gruumm found Morgana and turned her into Mora. She initially appeared as Mora, a 10-year-old girl who is pure evil and is a gifted pictomancer, being able to create real monsters from her drawings. Mora enjoyed playing with dolls. She has multiple contacts in the criminal underworld such as General Valko and Shorty.
 As Mora, she was very spoiled and got on Gruumm's nerves. She took advantage of a young, lonely boy named Sam by promising to be his friend if he would use his power of teleportation to help her monster, Bugglesworth. Sam finally realized the evil acts that Bugglesworth was committing and helped Z Delgado foil Mora's plan to turn people into dolls.
 After the defeat of her ally, General Valko, Gruumm punished Mora by reverting her to her adult form, Morgana. She was known for both her beauty and strength but she thought she looked hideous as an adult (a sentiment Piggy also shares with the belief she looked better as Mora). Morgana became desperate to be given back her youth, and set about trying to impress Gruumm and make him turn her back into Mora. Some later she reveals she has a battle suit and dons it when she fights along with the villains. Morgana was armed with energy projection, martial art techniques, and she occasionally controlled giant robots. Despite being an adult, Morgana still acted like a child, albeit an extremely sadistic and powerful one; her first battle was a grudge match against Z for shooting her doll, where she beat Z into submission and then walked away to rub it in.
 When Morgana was successful in retrieving the Hymotech Synthetic Plasma from Newtech Laboratory, Gruumm granted her wish and turned her back into Mora. However, Omni soon forced Mora to pledge her allegiance to him under his mind control. As a result of this, Mora's personality underwent a dramatic change; she even discarded her beloved doll into the abyss inside the ship, and started wearing a more militaristic outfit instead of her dress, and wore her hair up.
 Near the end of the series, Cruger confronted Mora on Gruumm's ship. She threw as many monsters as she could (given the amount of paper in her sketchpad) at him, but he destroyed them all and confined her.
 Mora is played by Olivia James-Baird and Morgana is played by Josephine Davison.
 The A-Squad was the Space Patrol Delta Academy's elite Ranger team, the defenders of Earth.
 The members of A-Squad are:
 During their early appearances in the series, they only appear morphed and are sent out to face the newest threat to the planet's safety. However, the A-Squad were already corrupt. Bridge sensed "something off" with their aura in the first episode, but didn't have the chance to find out what. In the episode "Confronted", the A-Squad is sent to the Helix Nebula to defend it from Emperor Gruumm. This was a trap and contact is lost with them in "Walls" after it was made clear they were being overwhelmed. They were considered "missing in action". In this episode, A-Squad Red's voice was distorted in editing to sound male instead of female.
 Unknown to the Rangers, the A-Squad had survived and had defected to Gruumm's side, wanting to be on "the winning team" (as stated in "Endings"). They bide their time, destroying the SPD Gamma 4 base (confirmed at conventions and in interviews by the show's producers), before finally faking a crash-land on Gamma-Orion and sending an SOS to have the B-Squad 'find' them alive.  The B-Squad Rangers soon became frustrated when Cruger abruptly dismissed them to debrief the A-Squad.
 However, at the end of "Resurrection", the A-Squad revealed their true allegiance and kidnapped Commander Cruger. Following this treachery, the B-Squad battled with the A-Squad. Despite the A-Squad initially having the upper hand, B-Squad managed to overcome them with a combination of smarter battle tactics and S.W.A.T. Mode. Escalating the battle, the A-Squad upped the ante by unleashing their own Megazord, which transforms from Broodwing's drill vehicle. A battle ensued, but when the Delta Command Base was overtaken by Broodwing's forces and transformed into the Delta Command Megazord to destroy the city, the Omegamax Megazord was disabled and the Delta Squad Megazord was destroyed. After the B-Squad had recovered, they recovered the S.W.A.T. flyers from the secret underground zord bay – which only Bridge had known about – and used the S.W.A.T. Megazord to destroy the A-Squad's Megazord, finally defeating them.
 The A-Squad was found guilty of treason and contained by the B-Squad with their Delta Morphers without a further fight. Commander Cruger promoted B-squad rangers to the A-squad status but at the request of B-Squad (who felt that they were B-Squad rather than A-Squad) the A-Squad "ranking" was retired and the B-squad was made the highest ranked team in SPD.
 In the pages of Jetix Magazine, the A-Squad makes an appearance in the S.P.D. comic strip in the two part "finale" of the strip called "Invasion". Here, they are brainwashed by Gruumm as opposed to corrupted, which is consistent with the original outline for their storyline,  and turn on the S.P.D. defense armada orbiting Earth. They are disposed of by B-Squad after a brief battle in the following issue and are not seen again. Their ranking is given to B-Squad for defeating Gruumm and Omni.
 The Krybots are the Troobian Empire's foot soldiers which come in many varieties. The Krybots come in three different varieties, each one stronger than the previous. The most commonly used and weakest version are ones that have round, gray-colored heads.
 Bluehead Krybots are stronger versions of the normal Krybots. Like their names suggest, they have blue, x-shaped heads and have blue breastplates. They wield laser blasters and sometimes swords. They are summoned from spherical devices that resemble their heads.
 The Bluehead Krybots are voiced by Derek Judge.
 Orangehead Krybots are the strongest version of the Krybots. Like their name implies, they have spikey, orange heads and orange and black bodies. They wield swords in battle and can summon powerful attacks like the Triforce Shockwave to attack with. They are summoned from orange, spikey spherical devices that resemble their heads.
 The Orangehead Krybots are voiced by James Gaylyn.
 These are the criminals hired by the Troobian Empire. Some of them are drawn up by Mora. These criminals are adapted from the criminals that appeared in Tokusou Sentai Dekaranger. While a few of them have grown, most of them pilot giant robots.
 Throughout the series, alien criminals, Krybots, and members of the Troobian Empire would sometimes use giant robots to battle the Megazords as most of the other alien criminals did not possess the ability to grow to giant size. Many of these giant robots were sold to Gruumm and his minions by Broodwing. Many of the robots were upgraded and recolored versions of past versions.