Characters created for, and exclusive to TMNT. For tropes relating to characters who originally appeared in other incarnations or were created here and went on to appear elsewhere, please visit the franchise character page. Unless otherwise stated, the characters of the sheet are canon foreigners.
Max Winters
Max Winters/Yaotl
Voiced by: Patrick Stewart
A powerful industrialist who enlisted the help of the Foot Clan to capture the thirteen monsters. He's eventually revealed to be Yaotl, a warlord that gained immortality, who now wants to rest in peace.- Ambiguously Brown: His coloring is vague enough that it's unclear what race he is, and this apparently allowed him to pass as many different ones, from Persian to Egyptian to Greek.
- The Atoner: His quest for immortality led to his generals, who were also his family, becoming stone statues and unleashed a batch of horrific monsters on the world. In the present all his plans were meant to lead into returning the creatures to their homes, undoing the immortality on himself and his resurrected siblings so they could all die and rest in peace.
- Badass Family: Him and the Stone Generals are siblings and they were fearsome warriors who destroyed all that opposed them.
- Big Bad: Subverted. Most of the film sets him up to be this, but his true motivations and plans are eventually revealed to be good. It's subtly implied that he may have been a true villain during the events 3,000 years ago that led to him gaining immortality, but later pulled a Heel–Face Turn due to the centuries of living with guilt and regret over the fate of his generals and being responsible for releasing the 13 monsters into the world.
- Disappears into Light: After the Stone Generals are defeated and the curse is lifted, he dies in peace and disintegrates into light.
- Expy: He was deliberately based off Vandal Savage, being an immortal supervillain who's taken on different identities throughout history and in the modern day poses as a successful wealthy businessman while hiding his villainous plot.
- Helmets Are Hardly Heroic: In the film's prologue, he is fully dressed in armor as Yaotl. However, while he is wearing his armor again in the present day, Max just puts his helmet aside and doesn't wear it for the final fight. In fact, it's the only thing that doesn't disintegrate with him. Considering he doesn't expect to fight, it seems he's wearing the armor more as a keepsake than for battle.
- Julius Beethoven da Vinci: Comes with the territory of being immortal. He's been multiple figures in history and none are aware of his true one.
- Meaningful Name: "Yaotl" is an indigenous Aztec word meaning "warrior," or "sower of discord." Considering the vaguely Aztec look of his and the generals' armor, it makes sense.
- Really 700 Years Old: He is revealed to be Yaotl, cursed with immortality after opening the portal 30 centuries ago but has not physically aged even one year.
- Suspiciously Similar Substitute: Possibly unintentional, but he is one to C.F. Volpehart from the 2003 series episode The Darkness Within. They are both Really 700 Years Old people who are cursed with immortality, who are very rich people in the present day and are responsible for unleashing deadly monster(s) and in the end, once they are cured of their immortality, they are both Reduced to Dust, resulting in a funny moment with Michelangelo being disgusted.
- Virtuous Character Copy: Despite being based off of Vandal Savage, as mentioned above, unlike Savage, Winters has realized that being immortal is a curse, and gave up on his quest for world domination, preferring to rest in peace.
- Who Wants to Live Forever?: Max Winters, after three thousand years of regret and loneliness, cannot find it in himself to bear the curse of immortality any longer and wants to lift it.
The Stone Generals
The Stone Generals
Left to Right: Aguila, Gato, Serpentie, Mono
Voiced by: Kevin Michael Richardson (General Aguila), Fred Tatasciore (General Gato), Paula Mattioli (General Serpiente), Frank Welker (General Mono)
Siblings and allies of Yaotl, who were turned into statues after he gained imortality. They are resurrected in the present in Winters' quest to lift the curse. However, as they didn't experience the thousands of years that made Winters want to remove it, they refuse to die once more, becoming the final big bads of the movie.- Actor Allusion: General Gato has the name and voice actor of one of the first villains of Naruto.
- All There in the Manual: Aguila is the only general referred to by name in the movie.
- Animal Motifs: Their names reflect the animals their suits are modeled after (Aguila=Eagle, Gato=Cat, Serpiente=Snake, and Mono=Monkey).
- Badass Family: With Max/Yaotl, as they are siblings and helped in his conquests, destroying any forces that stood in their way.
- Big Bad Duumvirate: After betraying Winters/Yaotl they become the collective main threat to the turtles and the biggest danger to the world.
- The Brute: General Mono is by far the largest of the Stone Generals and carries a big hammer.
- Combat Compliment: While fighting Raphael in the final battle, General Aguila admits the turtle is a good opponent and even offers him to join the generals.
- The Dragon: General Aguila is Yaotl's second in command.
- Evil Sounds Deep: General Aguila has a deep voice, courtesy of Kevin Michael Richardson.
- Living Statue: Brought to life by reanimating devices put on their chests.
- Out of Focus: General Serpiente and General Mono have less attention put on them than General Aguila and General Gato. Serpiente only has a single line while Mono has the least amount of attention and no dialogue.
- Red and Black and Evil All Over: All of them are dark statues that, when activated, have red highlights.
- Red Eyes, Take Warning: All of them have glowing red eyes.
- The Smurfette Principle: General Serpiente is the only female Stone General.
- The Starscream: They become this to Yaotl when they learn his true motives.
- Taken for Granite This is their fate after Yaotl's portal gets opened, while Yaotl is granted with immortality, releasing the thirteen monsters in the process.
- The Voiceless: General Mono doesn't speak, but grunts and growls. However, he does talk in the video game.
- Who Wants to Live Forever?: Averted, they WANT to live forever since they haven't been alive in all the centuries that they were turned to stone and believe Yaotl has become soft and weak.
Colonel Santino
Colonel Santino
Voiced by: John DiMaggio
A ruthless, cruel soldier who steals supplies that were meant for a Central American village.- Fat Bastard: He's an obese, cruel soldier.
- Laser-Guided Karma: At the beginning of the movie, him and his goons steal the supplies that were meant for a village. A few minutes later, all of them get taken out by Leo.
- Machete Mayhem: When Leo reveals himself to him, he picks up a machete.
- Starter Villain: Introduced at the start of the movie, he's taken out a few minutes later by Leo.
- Uncertain Doom: When his goons get taken out, Leo reveals himself to him. Santino pulls out a machete and the two charge at each other. The scene cuts, implying that Leo killed him.
