John Morris

Teenage Andy (voice)

Mel Brooks

Melephant Brooks (voice)

Steve Purcell

The Dummies (voice)

Laurie Metcalf

Andy's Mom (voice)

Estelle Harris

Mrs. Potato Head (voice)

Juliana Hansen

Miss Wendy (voice)

Jack McGraw

Young Andy (voice)

Jeff Garlin

Buttercup (voice)

Don Rickles

Mr. Potato Head (voice)

Alan Oppenheimer

Old Timer (voice)

Carol Burnett

Chairol Burnett (voice)

Jeff Pidgeon

Aliens (voice)

Melissa Villaseñor

Karen Beverly (voice)

Flea

Caboom TV Announcer (voice)

Timothy Dalton

Mr. Pricklepants (voice)

Patricia Arquette

Harmony’s Mom (voice)

Bill Hader

Axel the Carnie (voice)

Carl Reiner

Carl Reineroceros (voice)

Betty White

Bitey White (voice)

Lila Sage Bromley

Harmony (voice)