Suggestions by @jonathanahnberg2
7,392 suggestions
Owen Wilson
as Crank Casey in Robots 2005 (Alternate Cast)

Robert De Niro
as Bigweld in Robots 2005 (Alternate Cast)

Hugh Jackman
as Phineas T. Ratchet in Robots 2005 (Alternate Cast)
Bill Hader
as Little Helper in Harold and the Purple Crayon (TL-JRA)

Bobby Moynihan
as Grunt in Harold and the Purple Crayon (TL-JRA)

E.G. Daily
as 1998 Buttercup in Harold and the Purple Crayon (TL-JRA)
Tara Strong
as 1998 Bubbles in Harold and the Purple Crayon (TL-JRA)
Cathy Cavadini
as 1998 Blossom in Harold and the Purple Crayon (TL-JRA)

Candi Milo
as Astro Boy in The LEGO Astro Boy Movie

Alan Tudyk
as Professor Singalottasonga in Harold and the Purple Crayon (TL-JRA)

Caterina Mete
as Zardo Zap in Harold and the Purple Crayon (TL-JRA)
Paul Paddick
as Wags the Dog in Harold and the Purple Crayon (TL-JRA)
Sarah Silverman
as Officer Beaples in Harold and the Purple Crayon (TL-JRA)
Paul Paddick
as Henry the Octopus in Harold and the Purple Crayon (TL-JRA)

Caterina Mete
as Dorothy the Dinosaur in Harold and the Purple Crayon (TL-JRA)
Paul Paddick
as Captain Feathersword in Harold and the Purple Crayon (TL-JRA)

Tsehay Hawkins
as Tsehay in Harold and the Purple Crayon (TL-JRA)

Emma Watkins
as Emma in Harold and the Purple Crayon (TL-JRA)
Simon Pryce
as Simon (The Wiggles) in Harold and the Purple Crayon (TL-JRA)

Lachlan Gillespie
as Lachlan in Harold and the Purple Crayon (TL-JRA)