Leo Dooley

* Season 4
* Season 3
* Season 2
* Season 1

Prove to his older siblings that he is more than just their little brother. (succeeded; On the Edge)

### Family

Tasha Davenport (mother)
Unnamed Father
Donald Davenport (Step-Father)
Adam Davenport (Adoptive Brother/Step-Cousin)
Bree Davenport (Adoptive Sister/Step-cousin)
Chase Davenport (Adoptive Brother/Step-Cousin)
Douglas Davenport (Step-Uncle)
Daniel Davenport (Step-Cousin)
Marcus Davenport (Android Step-Cousin)
Rose (Grandmother)
Janice (Aunt)
Unnamed Grandfather
Unnamed Step-Grandparents

### Friends

Chase Davenport (Best Friend/Brother)
Adam Davenport (Best Friend/Brother)
Bree Davenport (Best Friend/Sister)
Donald Davenport (Step-father/Employer)
Douglas Davenport (Close Friend/Step-Uncle)
Daniel Davenport (Step-Cousin / Student)
Janelle (Girlfriend)
Bob (Good Friend)
Taylor (Close Friend/Teammate)
Logan (Close Friend/Teammate)
Eddy (Frenemy)
Terry Perry (Frenemy)
Caitlin
Spin (Frenemy)
Bionic Soldiers
Kaz
Oliver
Skylar Storm
Mr. President
Future Leo
Dr. Ryan

### Romances

Danielle (ex-crush)
Janelle (girlfriend)
Shelley (ex-crush)

### Enemies

Terry Perry (formerly)
Marcus Davenport
Douglas Davenport (formerly)
Trent
Pierce Harrington
Clayton Harrington
Robo Perry
Caitlin (sometimes)
Victor Krane
Taylor (formerly)
Kerry Perry
Bionic Soldiers (formerly)
Scott
Spin (formerly)
Sebastian Krane
Tank Krane
Lexi Krane
The Incapacitator
Dr. Gao
Giselle Vickers
Troy West

### Affiliations

Dooley-Davenport family
The Lab Rats (formerly)
US Government
Davenport Bionic Academy
Mission Creek High School

### Powers

Laser Sphere Projection
EMP Generation
Super Strength
Energy Transference
Super Durability

**Leo Francis Dooley** is the overall main protagonist of *Lab Rats* and the sixteen-year-old bionic teen who is the only son and eldest child of Tasha Davenport, the older half-brother of Naomi Davenport, the step-son and second-youngest child of Donald Davenport, the younger step-brother/cousin of Adam, Bree, and Chase Davenport, the step-cousin of Daniel and Marcus Davenport and step-nephew of Douglas Davenport. Loyal, caring and intelligent, Leo is initially an outcast until he meets his step-siblings, Adam, Bree and Chase and grows up. His stepfather, Donald had a lack of trust for Leo due to his tendency to accidentally destroy things, but has started to change his opinion, as he made Leo the team's "Mission Specialist."

Midway to Season 3, Leo becomes bionic after Douglas installs them to save his arm after it was crushed by a ceiling beam caused by Taylor when she blasted it on top of him and Donald put bionics in Leo's leg after it was crushed by a space elevator while saving his step-father.

## Personality

Being a teenager in high school, Leo is still trying to find his place in it and the world who is sarcastic, caring, but also somewhat insecure. At the beginning of the series, he was in still in his clumsy phase but he formed a quick bond with Adam, Bree, and Chase and despite being scared of them at first, he claimed them to be his best friends. However, he considered them his own siblings, calling Adam and Chase his brothers and Bree his sister in "Leo's Jam." In turn, the trio have come to see Leo as their younger brother and closest friends. Being young, Leo can be arrogant at times, though not as much as Donald. Leo did this by sometimes using Bree and Adam's bionics to his advantage and trying to one-up Chase. He is very close with his family and will do anything to protect them. This is proven when he tried desperately to prove to his family that Marcus was evil and that he and Douglas were trying to capture Adam, Bree and Chase. Despite teasing each other, Leo always helps his siblings and step-father whenever they are in need, as he went to face Marcus and Douglas to save them when the villainous duo captured them. In Season 2, Leo began maturing but wanted to become part of the team; however, Donald pushed him aside because he was not bionic. However, after Leo stepped up on a mission that the other Lab Rats missed, Donald realized how responsible Leo was getting and made him the team's mission specialist. By this season, Leo and Chase began having a stronger relationship.

In Season 3, Leo had come a far away from the boy at the beginning of the series, being able to take care of himself, especially after he got bionics. He began inventing things without breaking Donald's things, such as inventing orbs that he invented so they could protect Adam, Bree, and Chase from Douglas and Krane. Though the orbs went haywire, Donald admitted Leo had a good concept going on. By the latter half of the series, Leo is also willing to put the past behind himself and his enemies if they show change, as he did with Douglas in "Taken" and Taylor (S-1) in "One of Us." He willingly listened to what Douglas had to say about Victor Krane and agreed to a fresh start with Taylor, eventually becoming friends with them. When Douglas first gave Leo his bionics, he was initially shocked, but this immediately melted over as he began using them afterwards. Before long, Leo began misusing them and had very limited training, at least until he was under Douglas' guidance. He fought bravely in the Bionic War against S-1, but he didn't continue fighting because he was busy attending to Donald when he was incapacitated.

Like his uncle and brother, Leo felt overshadowed by his older siblings, similar to how Chase felt when Adam and Bree are praised more than him in "Avalanche" and how Douglas felt with Donald all of his life. This is shown in "Lab Rats: On the Edge," where he expresses hope that his siblings don't see him as just their little brother. After saving Chase and taking charge, Donald realizes Leo is ready and levels him up to mentor, where Chase tells Leo he is proud of his little brother as he, the rest of the team and the Bionic Soldiers warmly welcomed Leo back. He was also able to connect with his cousin, Daniel because of their commonalities.

## Physical Appearance

Leo is a teenage boy who is seen at the ages of thirteen and sixteen, with dark skin, dark brown eyes and curly black hair. Initially, he is fairly short, reaching up to Chase's shoulder, but overtime, he grew taller than Bree, and was nearly Chase's height. However, by season 4, Leo was the taller than Chase, becoming the second-tallest of the Lab Rats, reaching past Adam's shoulder.

Throughout the series, Leo's wardrobe changes. In Season One and Two, Leo wore colored shirts with pictures on it, but this more or less disappeared as it went on. Most notably in the second season, he wore long-sleeved shirts with short-sleeves over them. The only episodes he has not worn long sleeve T shirts is in Crush, Chop and Burn, and No Going Back, where he wore just a T-shirt instead. However, from Season 3 onwards, Leo mostly wore hoodies, long-sleeved shirts, and mostly shirts with button-up sweater with his sleeves rolled up. In "Rise of the Secret Soldiers," Leo gets a mission suit that is slightly different than Adam, Bree's and Chase's. Instead, he wears a black leather jacket that also has a hood. However, his right arm sleeve is red; Leo also has black pants with black pads on his knees and black combat boots.

## Powers and abilities

### Bionic Abilities

* **Bionic Arm:** After Leo's arm was crushed by a ceiling beam caused by Taylor when she was known as S-1, Douglas Davenport healed it with bionic components after learning his step-nephew would never be able to use his arm again. Douglas later developed an arm capsule for Leo after he glitched, causing him to sleepwalk.
	+ **Super Strength:** Leo has strength in his arm like his stepbrother, Adam Davenport, being able to lift a couch with his one arm and punch through walls.
	+ **Laser Sphere Generation**: Douglas gave Leo the ability to generate laser spheres in his hand. It is Leo's primary ability, and he uses it to knock out dangerous opponents, such as Victor Krane and Taylor (S-1)
		- **EMP:** Combined with Taylor's abilities, Leo and Taylor can create an EMP generation that can take out anything. The first time they did it blew out the electricity on Bionic Island and when they did it a second time, Leo accidentally caused her to go permanently blind.
	+ **Energy Transference:** Douglas unlocked this ability for Leo during the Battle of the Bionic Soldiers. It allows him to absorb energy from another source of power.
* **Bionic Leg:** After Leo's leg was crushed by Donald's space elevator, he gave Leo a bionic leg in fear that Leo would never be able to go on missions again without the proper healing.
	+ **Super Strength:** Leo's bionic leg is stronger than his bionic arm, as he was able to kick open a steel door while his arm was only able to create a dent in the cage.
* **Super Durability:** Leo bionic arm and leg are more durable than his non-bionic limbs.

## Relationships

### Chase Davenport

Chase is Leo's cousin/step-brother and Leo appears to be closer to Chase than the rest of his siblings. They are a lot alike, given that they are the youngest members of the Lab Rats, are very intelligent and good with technology, close in age (with Chase being the oldest of the two) and both got bullied by Trent and picked on by Adam and Bree, and they both snuck Douglas into the lab at one point.

Leo and Chase meet in” Crush, Chop and Burn”, when Leo accidentally stumbled across a secret elevator and found a lab within his step-father's basement. Chase was the first bionic teenager Leo had seen and was scared of his unknown step-siblings. However, Leo grew more relaxed when Donald explained who the three siblings were and admittedly, both Leo and Tasha were disturbed by how Donald treated the kids, such as making them eat fiber pellets that fell from the top of their capsules into their arms. When Chase first met Leo, he could barely stand him but quickly warmed up to Leo when he took them to school and showed Chase (and Adam and Bree) the outside world for the first time. Leo establishes that Chase, Adam and Bree as his best friends and was sadden to see them gone when Davenport was going to send them to Facility X in the Frozen tundra. Chase called Leo the first friend they ever had (with Adam correcting them that Leo was their only friend. Leo admitted that in their short time together, he came to love them, which Leo unknowingly admitted to the Lab Rats when Leo thought they just robots at the time. Later, when Davenport and Tasha told Leo that they sent the "robots" to a recycling department and went to rescue them. Chase was immediately concerned when he first saw Leo fall into the recycling bin and sprang into action to save his stepbrother, along with their other siblings. After seeing the kids use their bionics, Donald decided that the kids could stay and Leo was overjoyed. In "Leo's Jam," Later, Chase and Leo fall in love with the same girl, along with Adam. Despite winning Danielle, Leo chooses to apologize to Adam and Chase for sabotaging their chances with Danielle and calls them his brothers. Chase later acknowledges Leo as his brother in "Exoskeleton vs. Grandma," where Chase and Leo apologize to each other.

In "On the Edge," when Leo discovers a new ability called EMP generation with Taylor, Chase forbade Leo from ever using the ability because it proved to be too dangerous to use. However, the two disobeyed Chase, and used the ability again; however, the EMP generation resulted in Leo permanently blinding Taylor. The older Davenport brother scolded Leo for causing her danger and deems him unworthy of being a leader. Leo takes his brother's words at heart, especially after learning Taylor will never see again, and decides to quit the team and the academy and move back to Mission Creek. Chase never meant for Leo to quit, possibly thinking he had been a little harsh on his brother, and he felt that Leo should stand with them during the award ceremony because he was a hero just like them. Later, Chase and their family are trapped on the Hurst Bridge and Leo goes to rescue them. On the mission, Leo refuses to give up on saving Chase, who tells his younger brother to let go or the car will take him too; Leo refuses and saves his brother from falling and the two brothers hug each other, glad the other is safe from harm and finally reconciling. Afterwards, Leo is able to stand next to his siblings and later, Chase congratulates his brother to finally making it, claiming he couldn't be any prouder than him.

### Adam Davenport

Leo and Adam are best friends, and are considered close, caring about each other and acknowledging each other and brothers. They first met in "Crush, Chop and Burn" when Leo accidentally discovered Donald's lab. In the show, Leo will sometimes get annoyed with Adam's stupidity and out of the two of them, Leo appears to be more responsible. Despite this, Adam loves Leo as much as he does his other siblings and will be protective over him, as one of Adam's hidden abilities showed up when he saw Marcus about to kill Leo again. They hang out together, such as "Adam Up." Adam also worried for Leo when his arm got crushed by Taylor and Adam drove the protesters (including Principal Perry) away from Leo with his breath ability. He was proud of his younger brother when he went on his first official mission with them, but told him not to screw it up.

Currently, Leo and Adam are running what is left of the Bionic Academy.

### Bree Davenport

Bree is Leo's older step-sister/step-cousin, and they first met in "Crush, Chop, and Burn," where Leo accidentally stumbled upon her and her brothers. He was the first one to show Bree the real world and how to be a teenage girl. Bree makes it her responsibility as Leo's older sister to see her younger brother following the right path, as she told him to take the blame and tell Perry he cheated off of Bree on her test. Leo cares about Bree enough to try and restore the chip Bree destroyed when she grew tired of being bionic, even going to Douglas to help them.

Like Adam, Bree can be protective of Leo, as she was concerned for her brother when Douglas sent Marcus after Leo, telling him to stay away from him and when he was trapped in the training room with the rest of the bionic soldiers when Sebastian ordered them to take him out. She also called Donald out on his terrible parenting skills because Leo got a bionic leg because of him.

### Donald Davenport

Donald is Leo's stepfather and has been since 2012. Since Leo's biological father is never mentioned, Leo appears to be close to Donald as his father-figure. Donald tries too hard to bond with Leo, and once blew it with him when Donald revealed to Tasha Leo's secret crush when Leo wanted the secret kept between them. Leo mainly calls him "Big D" because of his position as head of the Davenport Household. However, Leo doesn't have the best relationship with him, even admitting he's not all that good. At the time of season 2 Leo and Donald appeared to get along better, as Donald begin trusting him with missions and being a part of the team. He is fairly protective of Leo as much as the lab rats, as he shouted for Douglas to leave his son alone and was relieved to see his son alive when Leo came in the middle of the battle between the Team and Douglas and Marcus Davenport. Since Leo matured, Donald finally trusts his stepson, like allowing him to invent things in the lab without Donald in the room and allowing him to find sponsors for his J-Wing stunt. Donald was also concerned for Leo when he learned that his son had been gravely injured, especially when the family feared Krane had kidnapped Leo again; Donald was relieved to see his son and Douglas when they were cornered by Krane and Donald immediately asked Leo if he was alright. However, Donald was angry to learn that his brother gave his son bionics, fearing Tasha's wrath. The Bionic Academy is founded, Donald passes Leo over as a mentor and tells him he has to be a student instead. At the end of Season 3, Donald promotes Leo to a higher level, from beginner to intermediate. In "Unauthorized Mission", Donald is nearly killed trying out Chase and Sebastian's latest virtual reality stimulation, causing Leo to rush to Donald's side and look at him in concern. Unknown to them, Sebastian rigged the stimulation, hoping to get revenge on Leo, the rest of the Lab Rats by taking away their father.

Donald does consider Leo his son, according to the episode "Bionic Houseparty." In "On the Edge," Donald proudly announces Leo is the next mentor after he proves to be courageous in battle by rescuing their family from the Hurst Memorial Bridge. Leo was also happy for Donald and Tasha when they announced that they were going to have a baby girl together.

### Tasha Davenport

Tasha is Leo's mother who he is rather close to. The premiere episode implied they had already been living in Mission Creek prior to her marrying Donald. Leo supports her marriage to Donald; however, Leo told his mother to stay away from online dating when they meet Adam, Bree and Chase for the first time and he sometimes wonders how they ended up together.

When Leo received bionic implants, Tasha was initially furious, but mainly with Douglas, and she often berates Douglas or Donald if Leo's bionics go haywire. She has chosen to support Leo for her son's sake. When Tasha revealed she was pregnant with her and Donald's first child, Leo was happy for his mother and gave her a hug, promising to protect his sister after she was born.

### Douglas Davenport

    Douglas is Leo's step-uncle and they were bitter enemies, but at the time, Leo did not know of his relation to Douglas until "Bionic Showdown. "However, Douglas went to Leo for help about Krane and despite his past feelings, Leo decided to listen. Leo's the first to believe Douglas, who tells Leo that he must talk to Donald because his step-father will believe him. By the second half of season 3, Leo and Douglas were friends, especially after going to his step-uncle for help in fixing Bree's chip. After Leo's arm is crushed, Douglas shows concern for him and tries pulling off the ceiling beam that fell off of him and when he can't do that, Douglas goes to the firemen to save Leo. After learning from the doctor that Leo will never be able to use his regular arm again, Douglas refuses to let that happen and takes Leo to Krane's Warehouse and uses bionic components to save his arm. Despite them being on the government's good side, Douglas urges Leo to keep his bionic arm a secret because they would take Leo away and Douglas would end up in Federal prison. He also reveals that he made a remote that turns Leo's bionics on and off for the safety of himself and others. Leo steals the remote and activates his bionics. Douglas realizes this and confronts Leo at school, where he sees that his nephew was trying to impress a girl. Douglas promises to teach Leo how to use his arm properly.

When Leo glitched for the first time, he attacked Douglas in his sleep. Chase began to blame Douglas for never giving Leo a capsule because he was responsible for giving the kid a bionic arm int he first place. He didn't want anyone to wake Leo up in fear for his nephew's safety because it could potentially make Leo explode. After the ordeal, Douglas gives Leo an arm capsule for him to wear in his sleep. Douglas made Leo Daniel's mentor because he thought he was responsible and later scolded Leo for giving his son a chip upgrade when he specifically told him not to and later, Douglas saved his nephew's life when he liquefied Marcus as he tried to fight Leo.

## Trivia

* Leo was the shortest member of the family, the only normal kid and the youngest (younger than even Chase).
	+ He is now the second-tallest, a bionic teenager since the Season 3 Episode, "You Posted What?" and second-youngest since the discovery of his cousin, Daniel ("And Then There Were Four").
* In the beginning of the series, Leo was thirteen years old.
	+ He turned fourteen in "Bionic Birthday Fail" and turns fifteen sometime in Season 2.
	+ He is sixteen by season 3. (Three Minus Bree) and the beginning of season 4 ("Under Siege").
* Most of Leo's powers are based on his older brother, Adam's.
* He was Tasha's only biological child until the birth of her daughter and Leo's sister Naomi. (*Lab Rats: Elite Force*)
* Leo shares some similarities with his brother, Chase:
	+ They are the youngest members of the four main siblings.
	+ They are often teased by Adam and Bree, however, they both get along better with Bree than they do with Adam, who also teases them about their height.
	+ At one point, they also snuck Douglas into Davenport's lab. (however, Chase lured him there and Leo brought him to the lab to fix Bree's chip.
	+ Anti-social and both mocked for their intelligence. (Leo mentioned how hard it is being the smart kid in school)
	+ They often feel overshadowed by their older siblings (Chase gets hurt by the lack of respect his team has for his intelligence, and Leo feels inferior to Adam, Bree, and Chase because they are all bionic humans, and later, because they doubt, he has it in then to be more than being the youngest)
	+ They also get annoyed by Davenport's big ego, because whenever Donald tries to improve something, he always lets his big ego get in the middle while he tries improving his younger sons' lives.
	+ Leo also shares some similarities with his cousin, Daniel:
		- They lived their whole lives without bionics.
		- Excited but feeling lost when in their family, the Davenports.
		- They get reckless with their bionics when they first got them.
		- They later became mentor and student.
* Leo went on his first mission in "Rise of the Secret Soldiers" and got his first mission suit in the same episode of the same name.
* According to Donald, he cannot handle high fiber cereal.
* During "You Posted What?!?" Douglas implies he left a pen in Leo's bionic arm.
* On Adam's website, it says he's the 8-year-old mascot called Leo Clooney (Rise of the Secret Soldiers).
* According to Douglas Donald killed most (if not all) of Leo's pets.
* He was the only member of the Lab Rats who wasn't originally a mentor at The Davenport Bionic Academy, he was a student. (First Day of Bionic Academy). He did eventually become one in "Lab Rats: On the Edge."
* Leo's voice deepened in Season 3 due to Tyrel Jackson Williams going through puberty.
* Several episodes allude to Leo becoming bionic,
	+ The episode "Parallel Universe" because his alternate counterpart is bionic.
	+ After Bree's chip is supposedly fixed, Leo tells Donald that if it worked, he could make a bionic chip for [him]
	+ At the beginning where Perry tells the students, "Get to class before they shoot missiles from [Bree, Adam and Chase's] fingers]" in "You Posted What?" foreshadows Leo being able to shoot laser spheres from his fingers.