Suggestions by @alecgroskreutz1

Tony Todd

as Gothano in Teenage Mutant Ninja Turtles: The New Animated Series - Season 2

Bill Murray

as Dr. Peter Venkman in Teenage Mutant Ninja Turtles: The New Animated Series - Season 2

Mona Marshall

as Aka in Teenage Mutant Ninja Turtles: The New Animated Series - Season 2

Lucy Liu

as Kitsune in Teenage Mutant Ninja Turtles: The New Animated Series - Season 2

Peter Stormare

as Rat King in Teenage Mutant Ninja Turtles: The New Animated Series - Season 2

Chris Jai Alex

as Commander Zog in Teenage Mutant Ninja Turtles: The New Animated Series - Season 3

Dee Bradley Baker

as Captain Rex in Teenage Mutant Ninja Turtles: The New Animated Series - Season 3

Dee Bradley Baker

as Hunter in Teenage Mutant Ninja Turtles: The New Animated Series - Season 3

Dave Fennoy

as Waster in Teenage Mutant Ninja Turtles: The New Animated Series - Season 2

Liam O'Brien

as Lynch in Teenage Mutant Ninja Turtles: The New Animated Series - Season 2

Nolan North

as Imperius Reptilicus in Teenage Mutant Ninja Turtles: The New Animated Series - Season 2

Steve Blum

as Fist in Teenage Mutant Ninja Turtles: The New Animated Series - Season 2

Donald Glover

as Carter Dawson in Teenage Mutant Ninja Turtles Movie 4: Turtles Forever

Robin Atkin Downes

as Deadaim in Teenage Mutant Ninja Turtles: The New Animated Series - Season 2

Keith Carradine

as Jack J. Kurtzman in Teenage Mutant Ninja Turtles: The New Animated Series - Season 2

Kath Soucie

as Libby Meitner in Teenage Mutant Ninja Turtles: The New Animated Series - Season 2

Dee Bradley Baker

as Mutagen Man/Seymour Gutz in Teenage Mutant Ninja Turtles: The New Animated Series - Season 2

Robbie Rist

as Mondo Gecko in Teenage Mutant Ninja Turtles: The New Animated Series - Season 2

Jim Cummings

as Herman the Hermit Crab in Teenage Mutant Ninja Turtles: The New Animated Series - Season 2

Ben Schwartz

as Pidgen Pete in Teenage Mutant Ninja Turtles: The New Animated Series - Season 2