James Marsden
Diggs (voice)
Christina Applegate
Catherine (voice)
Bette Midler
Kitty Galore (voice)
Katt Williams
Seamus (voice)
Neil Patrick Harris
Lou (voice)
Sean Hayes
Mr. Tinkles (voice)
Wallace Shawn
Calico (voice)
Roger Moore
Tab Lazenby (voice)
Joe Pantoliano
Peek (voice)
Michael Clarke Duncan
Sam (voice)
Kiernan Shipka
Little Girl
Paul Rodríguez
Crazy Carlito (voice)
J.K. Simmons
Gruff K-9 (voice)
Grey DeLisle
Security Bulldog/Catherine's Niece/Cat Spy Analyst
Elizabeth Daily
Scrumptious / Patches / Catherine's Niece (voice)
Phil LaMarr
Paws / Cat Spy Analyst (voice)
Michael Beattie
Angus MacDougall (voice)
Jeff Bennett
Duncan MacDougall (voice)
Malcolm Stewart
Captain Flemming
Keith Dallas
Coit Tower Guard
Christopher Lee Parson
Hep Cat / Cat Spy Analyst (voice)
Bumper Robinson
Cool Cat / Dog Killa / Cat Spy Analyst / Slim (voice)
Rick D. Wasserman
Rocky (voice)
Roger L. Jackson
Inmate Fat Cat (voice)
Bonnie Cahoon
Dog HQ PA / Catherine's Niece (voice)
André Sogliuzzo
Snobby K-9 (voice)
Carlos Alazraqui
Cat Gunner / Cat Spy Analyst (voice)
Grey DeLisle
Security Bulldog / Catherine's Niece / Cat Spy Analyst (voice)
Amitai Marmorstein
Playland Worker
Mark Burgess
Used Car Salesman
Sage Brocklebank
Park Patron
