Suggestions by @cartoonman8748

Mr. T

as E-102 Gamma (robotic voice) in Sonic the Hedgehog-A Motion Picture

Karl Urban

as E-123 Omega (robotic voice) in Sonic the Hedgehog-A Motion Picture

Connor Corum

as Charmy Bee and Metal Charmy (voices) in Sonic the Hedgehog-A Motion Picture

Will Yun Lee

as Espio the Chameleon and Metal Espio (voices) in Sonic the Hedgehog-A Motion Picture

John Goodman

as Vector the Crocodile and Metal Vector (voices, ever since the T-Rex's voice in We're Back: A Dinosaur's Story) in Sonic the Hedgehog-A Motion Picture

Penélope Cruz

as Blaze the Cat/Burning Blaze and Metal Blaze (voices, ever since Juarez's voice in G-Force (2009)) in Sonic the Hedgehog-A Motion Picture

Jesse McCartney

as Silver the Hedgehog/Super Silver and Metal Silver (voices, ever since Roxas's voice in the Kingdom Hearts game series) in Sonic the Hedgehog-A Motion Picture

Sandra Bullock

as Rouge the Bat and Metal Rouge (voices, ever since Miriam's voice in The Prince of Egypt (1998) and Scarlet Overkill's voice in Minions (2015)) in Sonic the Hedgehog-A Motion Picture

Richard Kind

as Big the Cat and Metal Big (voices, ever since Bing Bong's voice in Inside Out (2015)) in Sonic the Hedgehog-A Motion Picture

Katie Silverman

as Cream the Rabbit and Metal Cream (voices, ever since Sandstorm's voice in Whisker Haven: Tales with the Palace Pets) in Sonic the Hedgehog-A Motion Picture

Jodi Benson

as Amy Rose and Metal Amy (voices, ever since Ariel's voice in The Little Mermaid franchise) in Sonic the Hedgehog-A Motion Picture

Chris Evans

as Shadow the Hedgehog in Sonic the Hedgehog-A Motion Picture

Jackson Robert Scott

as Miles "Tails" Prower the 2 Tailed Fox and Tails Doll (voices) in Sonic the Hedgehog-A Motion Picture

Robert Downey Jr.

as Knuckles the Echidna/Super Knuckles and Metal Knuckles (voices, ever since his portrayal of Iron Man in The Avengers movie series) in Sonic the Hedgehog-A Motion Picture

Ben Schwartz

as Sonic the Hedgehog in Sonic the Hedgehog-A Motion Picture

Tim Curry

as Gerald Robotnik (costume that looks just like Gerald Robotnik's outfit, in a flashback video clip) in Sonic the Hedgehog-A Motion Picture

Alec Baldwin

as Officer Carl in Sonic the Hedgehog-A Motion Picture

Jane Lynch

as Officer Lucy in Sonic the Hedgehog-A Motion Picture

Will Smith

as Officer Harvey in Sonic the Hedgehog-A Motion Picture

Scarlett Johansson

as Stacy Anderson, the Station Square News Reporter in Sonic the Hedgehog-A Motion Picture