Chris Potter as Mike Muggins

Emma Roberts as Amelia Muggins

Richard Kind as Dr. Robert Farley

Pat Morita as Kiro

Louie as Minkey

Musetta Vander as Dr. Claudette Amour

Michael Bailey Smith as Hugo Dulton

Debra Jo Rupp as Edith

Barry Bostwick as The President

Phil Hanley as Mansion Guard #1

Chris Burns as Mansion Guard #2

Stephen Chang as Asian Spy

Peter Shinkoda as Mountain Guard #2

Jay Brazeau as Ringmaster