Master Splinter

Splinter, often referred to as Master Splinter or Sensei by his students/sons, is a fictional character from the Teenage Mutant Ninja Turtles comics and all related media. A mutant rat, he is the martial arts and ninjutsu instructor of the Turtles, as well as their adoptive father. In some incarnations—including the original comics—he was the pet rat of martial artist Hamato Yoshi, while in others he is a mutated or reincarnated Yoshi himself. The character was originally a parody of the Marvel Comics character Stick.

Canon portrayal

 * In the 1987 series, he was voiced by Peter Renaday in the American version and by Hideyuki Umezu (TV), Yuzuru Fujimoto (NHK-BS2) and Kiyoshi Kobayashi (VHS) in the Japanese versions. The film Turtles Forever features this incarnation, voiced by David Wills. Renaday would reprise the role of Splinter during spoken portions of the inaugural 'Coming out of their Shells' live action concert tour which was taped from Radio City Music Hall, though he went uncredited in the VHS tape.
 * In Ninja Turtles: The Next Mutation, Splinter is voiced by Stephen Mendel.
 * In the 2003 animated series and Turtles Forever American version, Splinter is voiced by Darren Dunstan. In the Japanese version, he is voiced by Shōto Kashii.
 * In the first two movies, he is voiced by Kevin Clash, and in the third, he was voiced by James Murray. In the 2007 animated film, he was voiced by Mako Iwamatsu; Iwamatsu died during production, and his new fill-in Greg Baldwin stepped in to provide a large share of Splinter's dialogue in the finished film (receiving a credit only for "additional voices"). Splinter was Mako's final role before his death. In the Japanese versions, he was voiced by Kiyoshi Kobayashi and Joji Yanami in the first film, Michio Hazama in the second, Hideyuki Umezu in the third and Shoto Kashii in the fourth.
 * In the 2007 TMNT game, he is voiced by Terrence Scammell.
 * In the 2012 animated series, Splinter is voiced by Hoon Lee.
 * In the 2013 video game TMNT: Out of the Shadows, Splinter is voiced by Feodor Chin.
 * In the 2014 reboot, Splinter was portrayed by actor Danny Woodburn and his voice was provided by Tony Shalhoub. In Teenage Mutant Ninja Turtles: Out of the Shadows, the film's sequel, Shalhoub again voices Splinter and the motion-capture for the character is done by Peter D. Badalamenti.
 * In the 2018 animated series, Rise of the Teenage Mutant Ninja Turtles, Splinter is voiced by Eric Bauza.

Iago PUC

 * Master Splinter appears in Comic Con Incorporated. A manager in the titular fictional hotel, he works as the yoga teacher.
 * Master Splinter is a guest crossover character in Marvel's Spider-Man: Webbed Champion, with Eric Bauza reprising his role from Rise of the Teenage Mutant Ninja Turtles. He appears alongside the Ninja Turtles in the episode "Legendary Universes, Part 5: Of Turtles and Spiders". While Leonardo and his brothers go with Spider-Man and his team battle Spider-Emperor's clan, he stays to help Mantis (who was created with a sample of the Mutagen Ooze) further understand her true inner nature.
 * Splinter makes a cameo appearance in the show's second Disney+ follow-up TV movie Marvel's Superhero Adventures: Infinity War. Appearing in the epilogue of the film, he is shown next to Leonardo and April O'Neil watching as the Multiverse Star is unlocked.
 * Splinter returns in the show's second Disney+ sequel miniseries All-Star Multiverse, voiced again by Eric Bauza.

Joint ideas

 * TBD