Baxter Stockman (TMNT 2K3)

In the 2003 series, Baxter Stockman, voiced by Scott Williams. Similar to the Mirage comics, in the 2003 series, Stockman was a 36-year-old African-American scientist working on his Mousers with hidden motives. While he sold them off as a means to rid the city of the rat problem, he was really using them to rob banks while under the Utrom Shredder's employ.

History
When his assistant April O'Neil discovered his plans, he sent the Mousers after her. With the help of the TMNT, she escaped and returned to Stocktronics to defeat him. The Turtles and April finally corner Stockman, who calls his Mousers, and retreats. As the building went down, Stockman was taken by Hun to see Shredder. The price for his failure was his left eye which Hun removed.

Stockman would then use the information he got from studying an Utrom exosuit the Foot found to create the invisible Foot Tech Ninjas, in an attempt to defeat the Turtles. Stockman later captures Raphael, with the help of "Foot Tech Ninjas." Hun interrogates Raphael, but allows him to escape to allow Foot Tech Ninjas to follow Raphael back to the Turtles' lair.

The Turtles successfully fend of the cloaked ninjas. When that plan failed he was carried off by the Foot Tech Ninja, Stockman was injured by Hun to the point that he was in a wheelchair with a neck brace and missing his right hand, which is replaced with a robotic prosthesis. Stockman is in a severely debilitated state at this point, but he still works for the Shredder hoping to gain access to the Utrom exosuit.

When the Shredder had his vengeance against the Turtles (Shredder Strikes Back arc), he wanted proof positive that the Turtles had perished, he would send Baxter to get proof that the Turtles died but threatens Stockman with a "final punishment" if he doesn't come back with conclusive evidence. Stockman performs a survey of the antique store, but finds no human or mutant DNA.

Distraught at this finding, Stockman made his own proof and gave it to Oroku Saki in exchange for the Utrom exosuit to study. Convinced that the Turtles are dead, Saki gives him access to the exosuit. Stockman's work for the Foot was always about personal gain and his loyalty only went as far as his personal benefit.

Having been subjected to harsh punishment by the Shredder on more than one occasion, Stockman quickly develops an animosity for the Shredder and Hun. With newfound and unfettered access to the Utrom exosuit, he plans to use the suit to create something that will give him more power. When the TMNT returned to New York and took revenge on the Utrom Shredder, he uses the surprise attack by the Turtles as an opportunity to launch his own plan of revenge against the Utrom Shredder.

Stockman would bust in, using a giant four-armed robot to try to get revenge on all 5 and Hun. Stockman attacks the Shredder's throne room and battles the Utrom Shredder, Hun and the Turtles. The Turtles and Shredder had to temporarily work together to defeat the mad scientist. Despite being a near indomitable foe, Stockman is defeated and seemingly explodes in the night sky.

Later, Stockman would be reduced to a head on a spider robot body that was voice activated by Saki. He is controlled remotely by the Shredder with a robot eye implant that covers up his previous wound that shocks Stockman when he disobeys his orders or becomes arrogant. Using him to sneak inside the T.C.R.I. building, the secret hideaway of the Utroms, the Shredder would have Stockman tamper with the virtual reality program the Utroms were using to explain their origins to the Turtles, so that if they died in VR, they would die for real.

Stockman shuts down the security of the base, and leads the Shredder and his men to an underground path that allows them to enter the building unseen. Once the TMNT broke free, Donatello had Fugitoid an ally of the Turtles imitate Shredder's voice to release Baxter from his control. Now free, Stockman attacked the warlord, whom he still holds a grudge against, and in part contributes to the Shredder's defeat and everyone would discover that he was actually an Utrom. After this incident, Stockman escapes and disappears.

With the Shredder's defeat, Stockman would set his head in an Utrom Exosuit chest cavity, protected by a glass jar and first try to trick Leatherhead for his own evil schemes. Working independently, Stockman befriends Leatherhead and helps the crocodile build a transmat device in exchange for help with his robotic body, and the Turtlebot, a robot created to fight the Turtles. Stockman's Robot is completed but Stockman's ruse is revealed when Leatherhead finds out that the scientist used to work for the Shredder. Stockman's Turtlebot is destroyed, but he escapes. By this time, Stockman no longer has the financial backing and material support of the Foot.

Later with his head now on the shoulders of the Utrom exo-suitwork and the chest cavity covered up, he worked with the mob in an attempt to rid the city of the Foot and the Purple Dragons, and win the gang war. With the Shredder gone, a turf war developed, and Stockman creates robots to get rid of the Foot and the Purple Dragons. Stockman's robots are destroyed and he survives the turf war.

Hun would somehow find Stockman again and reduce him to just a brain connected to an eyeball and spinal column in a stasis tube, and once again put him under the Shredder's command. Ch'rell did quote upon seeing Stockman's current appearance that he "should've quit while he was a head." The tank housing his brain allows him to speak, hear, and communicate with other foot techs, but it is also equipped a volume button, and electrical shocking device, which Hun and the Shredder use to torture the scientist.

This form of coercion was used to get Stockman to create a group of Foot Mechs (robotic soldiers). The Foot Mechs are eventually destroyed along with the Utrom Shredder's Freighter Headquarters. Stockman's tank rises from the water after Karai rescues the Shredder before sinking to the bottom of the ocean.

He is eventually fished out the water and continues to work under the Foot. Still a brain in a tank, Stockman has upgrades added to his tank, which include a modified self-propulsion system, a crude robotic arm, and a 360° hologram of his head. Despite an enmity shared between Stockman and the Shredder and the likelihood that Stockman will turn on him, Ch'rell keeps him around because he considers him to be useful.

This attitude begins to change when, because of Stockman's failed attempts, a new scientist named Dr. Chaplin was introduced, Chaplin considers Stockman to be a role model and would build Stockman a new robot body that would project a hologram image of his head. While Chaplin admired his work and looked up to him, Stockman was always trying to get rid of him due to threats by Ch'rell about making Chaplin a permanent replacement as the new head engineer of the Foot.

Stockman even goes as far as sabotaging Chaplin's inventions so that the younger scientist's success would not negatively affect him. Not one for gratitude, Stockman continues to plot against Chaplin, but his attempts backfire and only boost the junior scientist's worth in Ch'rell's eyes. Stockman's tries to sabotage Hun's mission to rescue Karai in Hun on the Run, but he soon becomes a contact within the Foot for Agent Bishop.

Eventually, Stockman would doublecross the Shredder one last time. A significant act of sabotage is seen when Stockman places a program that locks the controls of Ch'rell's starship in "Exodus, Part 1." When the ship is finally destroyed, and believing his enemies to have perished, he now worked alongside Bishop and joined the Earth Protection Force in exchange for a new body.

For the time being, Stockman upgraded his robotic body with four legs and four arms. Despite being an expert in robotics and engineering, Bishop changes Stockman's role and has him create clone aliens controlled by remote control in Aliens Among Us. The genetic material from these aliens inadvertently leads to a mutant outbreak. Stockman, who had been promised the tools he would need to create a new human body, is told that he is unable work on his new body until the outbreak is neutralized. Stockman is then sent to New York in "Outbreak" to contain the threat.

Despite working with EPF forces to contain the outbreak, Stockman is unsuccessful. Although Stockman is told that he is unable to work on his body, he divides his time between creating a new body and the outbreak. Bishop warns Stockman that he should not go through with the process, given the outbreak he caused. Stockman disregards Bishop's warnings goes through with a cerebral transfer into his new human body in "Insane in the Membrane."

Stockman finally made a new human body for himself but in his impatience, his work was rushed. Once his consciousness had been transplanted, the new body seems fine at first. But it decayed rapidly and in his desperation to halt the process, Stockman ended up losing his mind, which leads to the scientist having visions of his mother.

In his insanity, he decided that all of this had begun when April sent the Turtles after him, so he sought to destroy her. Stockman heads on a lone mission to seek revenge on April. In the end, Stockman's delusions of his mother made him save his former assistant instead, and he apparently fell to his death into the East River. Not being done with Stockman's work, however, Bishop found and revived his brain.

Bishop has Stockman's body recovered and his brain placed in a new cyborg body. However, when the scientist is brought back to life, he is mortified that he wasn't left to rest in peace. Under Bishop, Stockman is forced to work on a cure for the outbreak. He never figures out the cure as Leatherhead discovers it in "Good Genes ".

After the outbreak is neutralized, Stockman and Bishop inadvertently destroy the Heart of Tengu, an artifact that used to control the Foot Mystics. This act sets off a chain of events leading to the return of the original Shredder.

In an alternate future, where Ch'rell ruled Earth, Stockman's brain was attached to an aged, wheelchair-bound Hun. They worked with Donatello (who had been stranded in this dystopia by the Ultimate Ninja and Drako), the Turtles resident in that alternate reality, and April in an attempt to overthrow the Shredder. When they went to face him for the final showdown, Hun begged Ch'rell to take him back. Ch'rell, now using a giant-sized exosuit, stomped both Stockman and Hun flat. Stockman reappears in the fifth, "Lost" season of the series, still under Earth Protection Force employ. During his first appearance of the season, in the episode "Membership Drive," Stockman has programmed his cyborg body to reflect a hologram of his human body over him. He attempts to reprogram the reactivated Nano (found during a fortuitous E.P.F. salvage operation), with disastrous results (When Nano escaped, Bishop commented that he was beginning to understand why the Shredder kept destroying Stockman's body). Later, in the two-part season finale, he forms part of the turtles' offensive against a resurrected demon Shredder. In these episodes. he has a tank-like body. At the end of the final Lost Episode, his robot body was almost completely destroyed in the final battle and what was left of it was carried away by Bishop's soldiers with his holographic head saying resignedly "It seems the pain will never end." In the episode Head of State, an episode taking place in 2105. Stockman was still alive after 100 years, mixing his brain with alien DNA. This allowed his brain to no longer require any external life support systems, and could now move on it's own with green tentacles attached to it. He sent creatures called Organic Mousers (which he created, while still under Bishop's employment in the Earth Protection Force, to fight off aliens) after Bishop because he felt he was betrayed years ago, when Stockman was left behind by Bishop when a failed experiment, accidentally triggered a bio-chemical reaction, which caused the Earth Protection Force laboratory to collapse. Bishop was actually trying to save Baxter when he became trapped under rubble, and one of his alien captives saved him. Still incapable of building himself a new body, wished to take President Bishop's body as his own. However, he almost kills Bishop by renovating his head with the help of his brain transplanting device, but convinced by Leonardo that the world that the president helped create was one where even he could live a normal life, he abandons his plan. During their new confrontation, the now reformed Bishop redeems his previous action, saved him when Stockman's hideout was destroyed yet again, when another explosion is triggered by Donatello's sound waves. The scientist reforms and President Bishop subsequently offers Stockman a chance to work for him, saying the Department of Agriculture has expressed interest in his Mousers and seeing that in the future making a clone body is commonplace. Stockman asks him if there is a vice president. In the episode Hacking Stockman, when the Turtles return to the past, they learn that Stockman had constructed himself a cyborg body with a face match his organic one (minus the glasses) and struck an alliance with Hun and the Purple Dragons to hack the Foot's data vaults to plunder high technologies so the Dragons can conduct raids against them. However, the Cyber Shredder (an engrammatic copy of the Utrom Shredder) tracked the hacking to its source and took over the scientist's body through cyberspace using metals around him to create a makeshift Shredder appearance. Stockman ejects his head which grows spider legs to avoid being used as cannon fodder. He allies with the Turtles (excluding Don) to help him stop the Shredder. He uses a circuit board to link with his body and contacts Don (who is in cyberspace) to disrupt the Shredder's control over his body by uploading a firewall.