James Marsden
Diggs (voice)
Nick Nolte
Butch (voice)
Christina Applegate
Catherine (voice)
Wallace Shawn
Calico (voice)
Kiernan Shipka
Little Girl
J.K. Simmons
Gruff K-9 (voice)
Roger L. Jackson
Inmate Fat Cat (voice)
Grey DeLisle
Security Bulldog / Catherine's Niece / Cat Spy Analyst (voice)
