Suprising Cartoon Voices

Brent Spiner was the voice of Conan O'Brien in South Park: Bigger, Longer, and Uncut.

Dante was also the voice of American Dragon: Jake Long.

Dante Basco, best known as Rufio on Hook, was the voice of Zuko on Avatar: The Last Airbender.

Joey Lawrence was the voice of Oliver in Oliver & Company.

Jonathan Frakes was David Xanatos on Gargoyles.

LeVar Burton was Kwame on Captain Planet and the Planeteers.

Marina Sirtis was the voice of Demona on Gargoyles

Micheal Dorn was the voice of Coldstone on Gargoyles.

Eric Idle was the voice of Wreck-Gar in Transformers: The Movie.

Reno 911's Carlos Alazraqui was the voice of Rocko

 

James Avery, best known as Uncle Phil on The Fresh Prince of Bell Air was the voice of Shredder.

Stephen Colbert and Steve Carrell provided the voices of The Ambiguously Gay Duo

Micheal J Fox voiced Stuart Little.

John Leguizamo was Rat #2 in Doctor Dolittle.

Kelsey Grammar gave his voice to Sideshow Bob on The Simpsons.

Jessica Walter was the voice of Fran on Dinosaurs

George Clooney was the voice of the doctor in South Park: Bigger, Longer, and Uncut

Dustin Hoffman was Benedict Arnold on Liberty's Kids.

Bruce Willis was Spike in The Rugrats Movie.

Adam West was the voice of R. Kelley's Lawyer on The Boondocks

Alec Baldwin was the voice of Bad Guy Dennis in The Spongebob Squarepants Movie.

Micheal Cera was the voice of Brother Bear on The Bernstein Bears

Danny DeVito was the voice of Phil in Hercules.

Clooney was also the voice of Stan's Gay Dog Walt Disney himself was the first voice of Mickey Mouse.