Suggestions by @alecgroskreutz1

Liam Neeson

as Sir Edric in Knights of Camelot

Ankylosaurus

as Dinosaurs of 70 Million BC. in Teenage Mutant Ninja Turtles/My Little Pony - Part 1, 2, and 3

Dakotaraptor

as Dinosaurs of 70 Million BC. in Teenage Mutant Ninja Turtles/My Little Pony - Part 1, 2, and 3

Alamosaurus

as Dinosaurs of 70 Million BC. in Teenage Mutant Ninja Turtles/My Little Pony - Part 1, 2, and 3

Triceratops

as Dinosaurs of 70 Million BC. in Teenage Mutant Ninja Turtles/My Little Pony - Part 1, 2, and 3

Robbie Rist

as Mondo Gecko in Teenage Mutant Ninja Turtles: The New Animated Series - Season 6

Hoon Lee

as Master Splinter/Hamato Yoshi in Teenage Mutant Ninja Turtles: The New Animated Series - Season 6

Erica Lindbeck

as Sally Pride in Teenage Mutant Ninja Turtles: The New Animated Series - Season 6

Tyrannosaurus Rex

as Dinosaurs of 70 Million BC. in Teenage Mutant Ninja Turtles/My Little Pony - Part 1, 2, and 3

Jessica DiCicco

as Winny in Teenage Mutant Ninja Turtles/My Little Pony - Part 1, 2, and 3

Roger Craig Smith

as Red Dragons in Teenage Mutant Ninja Turtles/My Little Pony - Part 1, 2, and 3

Robert Kazinsky

as Sir Dinadan in Knights of Camelot

Aaron Taylor-Johnson

as Sir Alynor in Knights of Camelot

Richard Armitage

as Agravain in Knights of Camelot

Patrick Seitz

as Drako in Teenage Mutant Ninja Turtles/My Little Pony - Part 1, 2, and 3

Patrick Seitz

as Drako in Teenage Mutant Ninja Turtles/My Little Pony - Part 1, 2, and 3

Andrea Libman

as Twinkleshine in Teenage Mutant Ninja Turtles/My Little Pony - Part 1, 2, and 3

Tabitha St. Germain

as Lemon Hearts in Teenage Mutant Ninja Turtles/My Little Pony - Part 1, 2, and 3

Rebecca Husain

as Minuette in Teenage Mutant Ninja Turtles/My Little Pony - Part 1, 2, and 3

Kazumi Evans

as Moon Dancer in Teenage Mutant Ninja Turtles/My Little Pony - Part 1, 2, and 3