John Leguizamo

Character: Sid (voice)

Chris Wedge

Character: Scrat (voice)

Shane Baumel

Character: Whiny Beaver Boy (voice)

Paul Butcher

Character: Smarty Pants Molehog Boy (voice)

Sean S. Cunningham

Character: Glyptodon Boy (voice)

Karen Disher

Character: S'more (voice)

Khamani Griffin

Character: Beaver Son (voice)

John Hawkinson

Character: Beaver Dad (voice)

Feodor Lark

Character: Aardvark Girl Cindy (voice)

Emily Osment

Character: Start Girl Claire (voice)

Élie Semoun

Character: Additional Voices (voice)