Will Ferrell

Ted (Man with the Yellow Hat) (voice)

Drew Barrymore

Maggie (voice)

David Cross

Junior (voice)

Eugene Levy

Clovis (voice)

Joan Plowright

Ms. Plushbottom (voice)

Dick Van Dyke

Mr. Bloomsberry (voice)

Frank Welker

George (voice)

Ed O'Ross

Ivan (voice)

Michael Chinyamurindi

Edu (voice)

Michael Sorich

"Seen It" Cab Driver (voice)

Billy West

Manager (voice)

Jeff Bennett

Salesman (voice)

Kath Soucie

Animal Control Receptionist (voice)

Clint Howard

Balloon Man (voice)

Shane Baumel

Kid (voice)

Michaela Jill Murphy

Kid (voice)

Alexander Gould

Kid (voice)

Hailey Noelle Johnson

Kid (voice)

Ariel Winter

Kid (voice)

Kimberly Brooks

Additional Voices (voice)

Wendy Cutler

Additional Voices (voice)

Joey D'Auria

Additional Voices (voice)

Treva Etienne

Additional Voices (voice)

Eddie Frierson

Additional Voices (voice)

Donald Fullilove

Additional Voices (voice)

Philip Maurice Hayes

Additional Voices (voice)

Bridget Hoffman

Additional Voices (voice)

Rif Hutton

Additional Voices (voice)

Donna Lynn Leavy

Additional Voices (voice)

John Mariano

Additional Voices (voice)

Caitlin McKenna

Additional Voices (voice)

Juan Pope

Additional Voices (voice)

Jonny Solomon

Additional Voices (voice)

Mandy Fabian

Additional Voices (voice)

Fred Tatasciore

Additional Voices (voice)