Disney XD's Lab Rats Wiki
I always wondered where we came from. Luckily, Chase put the pieces together for me. My father fought for what he believed, that bionic humans are superior. And when his beliefs were challenged by a non-bionic human like Davenport, he fought back. And that's why I'm going to carry on his legacy. See, you took away our leader and tried to pretend like nothing ever happened. I think it's time for a little payback, now I'm going to take away your father.
— Sebastian to Adam, Bree, and Chase about Victor Krane in Bionic Rebellion

Sebastian Krane, (formerly S-3), is a former bionic superhuman and was the leader of the Bionic Soldiers. Sebastian joined the Davenport Bionic Academy and developed a rivalry with Chase. He was the tertiary antagonist in Rise of the Secret Soldiers and the main antagonist in Unauthorized Mission and Bionic Rebellion, making him the tertiary antagonist of Season 3, and the overall quaternary antagonist of Lab Rats/Lab Rats: Bionic Island. He started the Bionic Academy Rebellion. His bionic chip was removed at the end of Bionic Rebellion, and he was sent to jail, along with Lexi and Tank. It is possible that he might have made a return in Lab Rats: Elite Force, however, due to the series being cancelled, his status remains unknown.

He is portrayed by Cole Ewing.


Sebastian was one the most powerful of Victor Krane's bionic soldiers, next to his sister S-1, as they were chosen as his lead soldiers.  

After the Lab Rats' bionics were revealed to the world, Krane got locked up and used the Triton App to awaken Sebastian and all his other brothers and sisters. In the weeks that followed, Sebastian led a raid on a government facility, broke into the U.S. Pentagon, and broke his creator and sister out of prison.

As Krane began the Bionic War, S-3 oversaw operations at Pike's Crest to assemble a satellite transmitter that would transmit the Triton App all over the globe. As the Davenports moved in to Pike's Crest, Sebastian's brothers and sisters ambushed the team, while he decided to fight Chase personally.  After a long battle, Chase defeated him. After the Lab Rats fused their abilities to shoot Krane into the sky, he and the other soldiers lost consciousness with the Triton App deactivated, and had no recollection of what happened.

24 hours later, S-3 and his brothers and sisters saw Adam, and decided to adopt him as their leader because they had no place to go. When he saw Chase, the latter wasn't happy to see him. The Lab Rats tried to hide him from the government, but he kept calling more soldiers, much to Chase's annoyance.  When the government caught up, he and his brothers and sisters tried to escape, but they ended up in the Lab. As Leo lay dying, Sebastian a few others volunteered to transfer a fraction of their energy to save Leo's life. Because of his noble act, the President and Davenport agreed to keep him and the other soldiers in the Davenport Bionic Academy, where he became a student.

In First Day of Bionic Academy, S-3 adopted the name Sebastian and became one of Chase's students. However, he and Chase did not get along due to Chase being too bossy. When Leo punched out a foundation and caused the island to sink, Chase and Sebastian fought over who should save the island.

In Unauthorized Mission, he and Chase argue over who should build a new simulator for the students, though Donald suggested they do it together. Since Adam kept getting in the way, they decide to get back at him by testing the simulator on him. Chase reluctantly told Sebastian about his creator, Victor Krane and how they had to take him out. This did not bode well for Sebastian, as he turned evil and swore to destroy Davenport for killing his father.

Sebastian is finally defeated in Bionic Rebellion, however, due to his chip being removed before being taken away by Perry, it is unknown if he is still alive, due to his bionics being a part of his genetics.


Sebastian is shown to be hot-headed and very rebellious. In Rise of the Secret Soldiers, he is shown to be very cocky and underestimated Chase, causing his defeat. He was influenced by Adam's laid back attitude and as such, mostly did not get along with Chase. Sebastian had a tendency to pick fights with Chase, having antagonized him at least several times.

After being freed by the Triton App, he came across as being too trusting, often taking Adam's advice literally or answering the door to what could have been random strangers or government agents. By Adam Steps Up however, he did develop some common sense, as he wondered why his brother Bob took Davenport's jet.

Along with his bionic brother, Spin, he avoided getting named by Donald Davenport by picking his own name. Before that, Davenport planned to name him Julio.

Sebastian does care for his brothers and sisters, as he was concerned about Bob, and knows him quite well.

After Chase revealed the truth about who Sebastian was before being released from the Triton App, he secretly swore to take out Mr. Davenport for revenge for destroying Victor Krane. Just like his father, he believes normal humans are inferior. Nonetheless, he never came to understand how terrible Krane was.  

Powers and Abilities

After the incident in Bionic Rebellion, his abilities have been removed due to the chip removal. All of his bionics on this page are former.

  • Every Bionic Ability: He revealed he unlocked all of his hidden abilities.
    • Super Strength: Just like Adam and Leo, he is stronger than an average human, as he could've broken out of the handcuffs he was placed in if Chase hadn't extracted his chip.
    • Super Speed: Just like Bree, he is very fast and can keep up with other bionic soldiers, and even Bree. He has demonstrated this ability in Rise of the Secret Soldiers. This also gives him higher reflexes than a normal person.
    • Laser Pitchfork: Similar to Chase's Laser Bo Generation, his Laser Pitchfork is very similar, however, it is red in color and has a pitchfork/spur life shape.
    • Geo-Leaping: Like all (or most) of the other bionic soldiers, he can geo-leap at will.
    • Molecularkinesis: Sebastian can manipulate the molecules around an object, giving him a form of telekinesis. This ability will also allow him to move things with his mind, just like Chase.
    • Energy Transference: Like Leo, all the bionic soldiers have energy transference. This ability can absorb any type of energy source and it can be used medically. With the rest of his brothers and sisters, aka the other bionic soldiers, Sebastian used his Energy Transference to heal Leo. However, he and each person gave a fraction of their life energy so that they wouldn't suffer the same side effects Leo did when he saved Donald's life.
    • Bionic Beacon: In the Bionic Houseparty, he can send messages to his other brothers and sisters, even those who weren't awakened for the battle. This is what allowed Sebastian to summon all the remaining soldiers. In Adam Steps Up, he used his bionic beacon to try to search for Bob, but he couldn't find Bob because he was flying a plane in the air and Sebastian was on the ground. This indicated his beacon only works if he is in the same terrain as the target (i.e. Bob was in the air while Sebastian was on the ground).
    • Electrokinesis: In the episode Bionic Rebellion, he has demonstrated that he can create and manipulate electricity. He shot the Lightning at Chase and Bree. It is one of his many hidden abilities.
    • Pyrokinesis: In the preview of Bionic Rebellion, he shoots a large amount of fire at Chase. This is the ability Chase unlocked for him. It is also one of his many hidden abilities.
    • Energy Projection: In the preview of Bionic Rebellion, he shoots energy from his body. This was also shown when he projected energy a few times at Adam, Bree, and Chase. It is one of his many hidden abilities.
      • Laser Sphere Generation: In Bionic Rebellion it is shown when Bree says, "Over here!" Sebastian moved his arm in a diagonal orientation and created a laser sphere that Bree dodged. It is one of his many abilities.
    • Heat Vision: In Bionic Rebellion, he shoots red lasers from his eyes, similar to Adam's. He can also control the intensity. It is one of his many hidden abilities.


  • Papaya: In Bionic Rebellion, Chase accidentally made Sebastian allergic to papaya.
  • Hot Tempered: In Bionic Rebellion, his rage was in 92%.


Sebastian overloads his bionic chip

  • Bionic Chip Overload: In Bionic Rebellion, Sebastian unlocked and uses all of his bionic abilities to try to destroy Adam, Bree, Chase, and Leo. When doing so, he overloads his chip causing it to fry and caused him to malfunction.


Season 3

Season 4


Season 4


  • Sebastian revealed he unlocked all of his hidden abilities. This caused him to fry out, just as Douglas said would happen if he unlocked all of Chase's hidden abilities.
  • Sebastian was the bionic soldier on the security footage presented by Douglas.
  • Out of the three Lab Rats', his abilities are more related to Chase's.
  • In Rise of the Secret Soldiers, he lost a battle against Chase, but he does not remember since every single one of the soldiers forgot their memory after their Triton App got deactivated.
  • He's formerly known as S-3, but he changed his name to Sebastian in the episode, First Day of Bionic Academy.
  • Sebastian thinks Bree is cute. (First Day of Bionic Academy) He will follow any instructions as long as Bree is involved, though he doesn't seem to pay attention to what he's doing.
  • Sebastian turned evil after finding out about Victor Krane and what happened to him.
  • Sebastian claimed that he is the most advanced student out of the whole students, even though he's only Advanced Class (Orange), while the Expert Class is the highest (Red). In First Day of Bionic Academy, some students were shown to be in Expert Class already, which means all of the Expert Class students in that episode were demoted or Sebastian was just over exaggerating. But it is possible that he is the best student now, since he gets promoted to Expert (Red) between Unauthorized Mission and Bionic Rebellion.
  • At the end of Unauthorized Mission, when the students and the Lab Rats have left, Sebastian states that because the Lab Rats took away his father (Victor Krane), he would take away their father.
  • He wanted to become Mission Leader. (Unauthorized Mission).
  • He does not know what detention is. (First Day of Bionic Academy).
  • He shows some similarities to Marcus, the main antagonist of Season 1 and part of Season 2.
  • After finding out about his father's fate, he pretended to befriend the Lab Rats, but is actually planning to take out Donald Davenport. However, he was a true friend to the Lab Rats before finding out the truth.
  • Similar to Leo with Marcus, Perry is the only one who knew Sebastian was evil.
  • He was upgraded to the Expert level in Bionic Rebellion Along with a couple other students.
  • His bionic chip was removed in Bionic Rebellion along with Lexi's and Tank's.
  • His bionic chip is blue.
  • Prior to becoming evil, Sebastian seemed to be the de facto leader of the bionic soldiers (even though Taylor was Krane's lead soldier), caring the most about his 'brothers and sisters' and knowing each of them (such as knowing that Bob is colorblind).
  • Sebastian is one of the only three people (Along with Spin & Taylor) that got to choose their own name.
  • He is the second character known to have unlocked all abilities, the first being Marcus.
  • Sebastian is the first of Bree's love interests to be bionic.
  • Donald wanted to name him Julio. (First Day of Bionic Academy),
  • Sebastian, along with Lexi and Tank, are the only soldiers who never knew about the doomsday virus that Krane put in their Triton Apps. Its unknown if the three of them exploded. However given that they had their chips remove it likely they didn't explode.
  • His lifespan was shortened a little bit when he saved Leo by transferring some of his life energy to Leo, but he said the effect was minimal because many other soldiers did it too.
  • He and Marcus Davenport have two similarities. They both betrayed Adam, Bree and Chase and they also have all of the Lab Rats bionics.
  • He thought Krane died. However, Krane did die in Space Colony, which took place after Sebastian's rebellion.
  • He is the first love interest of Bree that betrayed her.
  • He might return in Lab Rats: Elite Force, and team up with Dr. Gao, a friend/partner of Krane.
    • If so, Dr. Gao will likely inject Sebastian with liquid bionics.
  • He is the first recurring character to be in 7 episodes in a row out any absences. (Rise of the Secret Soldiers, Bionic Houseparty, First Day of Bionic Academy, Adam Steps Up, Unauthorized Mission, and Bionic Rebellion).


Click here to view more images from Sebastian.
For the image gallery of Sebastian see Sebastian/Gallery.