S-1 is a major antagonist in Lab Rats, serving as the main antagonist in Season 3, but later redeems herself and turns into a supporting character. She is Victor Krane's lead bionic soldier. She revealed the Lab Rats' bionic secret when she filmed them doing a mission and posted it online. She temporarily replaces Marcus Davenport as Leo's arch/main enemy, but after Krane was defeated she reformed and she is one of Leo friends.
S-1 is a bionic soldier, created by Victor Krane, who genetically grew her and implanted her with Douglas Davenport's technology making her bionic, however using an updated version of the Triton app he could control her with his mind. He used her in his plan to removed Adam, Bree, and Chase by staging a gas pipe rupture and sending her to film them. Then leaking the footage to the world revealing that Bionics existed.
Later she went with Krane to confront Douglas and Leo, while Krane nearly killed them, he let her deal with Leo. Trapping him in an electric cage, she then caused the ceiling to break above him, causing a giant concrete block to fall on him, apparently killing him. She then left with Krane. However Leo survived, but the block only crushed his arm.
Later she again went with Krane to confront Douglas and Leo, in one of Krane's old labs. By this point Douglas had given Leo bionics in his arm, to save it. She quickly overpowered him, however, while Krane defeated Douglas, while they were about to kill them. But Adam, Bree, Chase, and Donald burst in to face them. She punched Adam across the room, so he let Bree handle her. The fight carrying on she was gaining the upper hand. However trying to hit her, Leo accidentally hit Krane. Distracted by this it gave Bree the chance to defeat her. They were taken away by the special service agents.
Now trapped in a cage, in a secret location, she asked Krane what they were going to do, however, Krane assured her not to worry, as he activated his army of other Bionic soldiers, to carry on his plan.
She seems to have escaped jail with Krane and just like Marcus, became Leo's archenemy, who wanted to destroy him, but failed to kill him. Leo later blasted S-1 into the sky, defeating her.
After Krane's defeat, she was revealed to have survived and like all the other bionic soldiers, lost all memory of working for Krane and ended up coming to the Bionic Academy where she revealed that she and the other soldiers have a doomsday virus in their Triton Apps. After helping to save all the bionic soldiers, she is given a second chance and is welcomed into the Davenport Bionic Academy.
- Just like her siblings, S-1 stood for Soldier-1 and it was her real name. Many viewers theorized that the S in S-1 stands for her first name, however, this was proven to be false.
- She was S-1 because she is believed to be the most powerful and most dangerous of the bionic soldiers.
- She is considered a counterpart/replacement to Marcus Davenport, as both have every ability of the Lab Rats and both are servants to the main antagonist who chiefly spied on the main characters. Like Marcus, Taylor has all the Lab Rat's abilities combined. In addition, Taylor primarily targeted Leo just as Marcus did, thereby replacing him as Leo's archenemy. Unlike Marcus, her creator directly controls her with the Triton app, and has little regard for her other than as a weapon, whereas Douglas shows some level of care for Marcus, giving him a real name and interacting with him in a father/son way, even though he was an android. Another key difference is that, Marcus was pure evil and didn't care that Douglas's orders were horrible, whereas Taylor was more sympathetic because she wasn't evil by choice, and even feared Victor Krane's cruelty afterwards.