Suggestions by @kevindolan

Mel Blanc

as Dino in Yabba dabba doo!

Jeff Bergman

as Bugs Bunny in Looney Tunes

Brooklynn Prince

as Clampers Buttonwillow in TrollsTopia

Kevin Michael Richardson

as Klaus Von Frosting in TrollsTopia

Frank Welker

as Speed Buggy in Hanna Barbera Funtastic Universe

William Hanna

as Jerry Mouse in Hanna Barbera Funtastic Universe

Peter Stormare

as Fred Flintstone in Hanna Barbera Funtastic Universe

Jonah Hill

as Barney Rubble in Hanna Barbera Funtastic Universe

Timothy Olyphant

as Radley Crowne in Hanna Barbera Funtastic Universe

Paget Brewster

as Mary Helperman in Teacher's Pet

Billy West

as Mr. Jolly in Teacher's Pet

Jeff Bennett

as Pretty Boy in Teacher's Pet

Kevin Schon

as Spot in Teacher's Pet

Kenny James

as Bowser in Super Mario Bros

Bill Fagerbakke

as Patrick Star in The Spongebob Movie: Sponge on the Run (ended)

Louis Garneau

as Bud Budiovitch in Space Goofs

Danny Mann

as Gorgious Klatoo in Space Goofs

Charlie Adler

as Candy Carmella in Space Goofs

Maurice LaMarche

as Etno Polino in Space Goofs

Jim Davis

as Writer in Garfield