Chloë Grace Moretz Young Penny (voice)
John Travolta Bolt (voice)
Malcolm McDowell Dr. Calico (voice)
John DiMaggio Saul (voice)
Tara Strong Additional Voices (voice)
Grey DeLisle Penny's Mom (voice)
Jeff Bennett Lloyd (voice)
Nick Swardson Blake (voice)
Miley Cyrus Songs, Penny (voice)
John Lasseter Executive Producer
Greg Germann The Agent (voice)
Dan Fogelman Screenplay, Billy (voice)
Diedrich Bader Veteran Cat (voice)
Kari Wahlgren Mindy Parker (voice)
Phil LaMarr Additional Voices (voice)
Brian Stepanek Martin (voice)
Terri Douglas Additional Voices (voice)
Daran Norris Louie (voice)
Scott Menville Additional Voices (voice)
Byron Howard Director
Jenny Lewis Assistant Director (voice)
Susie Essman Mittens (voice)
J.P. Manoux Tom (voice)
Ronn Moss Dr. Forrester (voice)
Randy Thom Sound Re-Recording Mixer, Sound Designer
Nathan Greno Additional Voices (voice)
Stephen J. Anderson Additional Voices (voice)
Chris Williams Additional Voices (voice), Director, Screenplay
Anne Lockhart Additional Voices (voice)
Sean Donnellan Penny's TV Dad (voice)
James Lipton The Director (voice)
Sam Marin Animation
Mark Walton Rhino (voice)
Paul Pape Additional Voices (voice)
Jonathan Nichols-Navarro Additional Voices (voice)
Randy Poffo Thug (voice)
John Powell Original Music Composer
Patrick Osborne Animation
Clark Spencer Producer
Randy Kerber Orchestrator
David Cowgill Additional Voices (voice)
Jackie Gonneau Additional Voices (voice)
Germaine Franco Orchestrator
Pepper Sweeney Additional Voices (voice)
Clay Kaytis Supervising Animator
Joe Moshier Character Designer
Frank E. Eulner Supervising Sound Editor
David E. Fluhr Sound Re-Recording Mixer
June Christopher Additional Voices (voice)
Scott Guitteau Sound Effects Editor
Joe Whyte Modeling, Additional Voices (voice)
Brian Menz Animation
Holly Kaneko Additional Voices (voice)
Bob Davies Animation
Pete Anthony Orchestrator
Marshall Winn Dialogue Editor
James Baker Animation
Joe Oh Animation
Bill Perkins Animation Manager, Visual Development
Cinzia Angelini Animation
Brian Kesinger Layout
Ethan Hurd Animation
Jin Kim Character Designer
Chen-Yi Chang Character Designer
Paul A. Felix Art Direction
J.R. Grubbs Sound Effects Editor
Darrin Butters Animation
Tom MacDougall Music Supervisor
Lino DiSalvo Supervising Animator, Vinnie (voice)
Shannon Stein Associate Editor
Scott C. Lemmer Animation
Robert L. Miles Sequence Leads