Suggestions by @lucarba

Vincent Martella

as Zak in Teenage Mutant Ninja Turtles

Wayne Knight

as Old Hob in Teenage Mutant Ninja Turtles

Darren Criss

as Vernon Fenwick in Teenage Mutant Ninja Turtles

Eric Bauza

as Hun in Teenage Mutant Ninja Turtles

Matthew Modine

as Rat King in Teenage Mutant Ninja Turtles

Stephanie Beatriz

as Robyn O'Neil in Teenage Mutant Ninja Turtles

James Sie

as Splinter in Teenage Mutant Ninja Turtles

Pete Davidson

as Casey Jones in Teenage Mutant Ninja Turtles

Daveed Diggs

as Baxter Stockman in Teenage Mutant Ninja Turtles

Cristina Valenzuela

as Irma Langinstein in Teenage Mutant Ninja Turtles

Cristina Vee

as Irma Langinstein in Teenage Mutant Ninja Turtles

Andy Samberg

as Mondo Gecko in Teenage Mutant Ninja Turtles

Milo Manheim

as Leonardo in Teenage Mutant Ninja Turtles

Andrew Rannells

as Donatello in Teenage Mutant Ninja Turtles

Harry Lennix

as Silver Sentry in Teenage Mutant Ninja Turtles

Ricky Gervais

as Darius Dun in Teenage Mutant Ninja Turtles

Eddie Murphy

as Bellybomb in Teenage Mutant Ninja Turtles

Henry Winkler

as Zippy Lad in Teenage Mutant Ninja Turtles

Clancy Brown

as Chris Bradford in Teenage Mutant Ninja Turtles

Milo Manheim

as Leonardo in Teenage Mutant Ninja Turtles