John Travolta Bolt (voice)
Chloë Grace Moretz Young Penny (voice)
Grey DeLisle Penny's Mom (voice)
Diedrich Bader Veteran Cat (voice)
Malcolm McDowell Dr. Calico (voice)
Tara Strong Additional Voices (voice)
Jeff Bennett Lloyd (voice)
John DiMaggio Saul (voice)
John Lasseter Executive Producer
Kari Wahlgren Mindy Parker (voice)
Patrick Osborne Animation
Byron Howard Director
Dan Fogelman Billy (voice), Screenplay
Miley Cyrus Penny (voice), Songs
Nick Swardson Blake (voice)
Clay Kaytis Supervising Animator
Brian Stepanek Martin (voice)
Phil LaMarr Additional Voices (voice)
Joe Moshier Character Designer
Greg Germann The Agent (voice)
Scott Menville Additional Voices (voice)
James Lipton The Director (voice)
Pepper Sweeney Additional Voices (voice)
Jonathan Nichols-Navarro Additional Voices (voice)
Tom Carlson Music Editor
Joe Whyte Modeling, Additional Voices (voice)
Jin Kim Character Designer
John Powell Original Music Composer
Chris Williams Director, Screenplay, Additional Voices (voice)
Doug Walker Layout
J.P. Manoux Tom (voice)
Daran Norris Louie (voice)
Dick Zondag Animation
Allen Blaisdell Layout
Terri Douglas Additional Voices (voice)
Daniel Hu Layout
Sean Donnellan Penny's TV Dad (voice)
June Christopher Additional Voices (voice)
Kevin Nelson Visual Development
Susie Essman Mittens (voice)
Randy Poffo Thug (voice)
Ronn Moss Dr. Forrester (voice)
Brian Menz Animation
Karen Ryan Additional Voices (voice)
Germaine Franco Orchestrator
Stephen J. Anderson Additional Voices (voice)
Randy Thom Sound Designer, Sound Re-Recording Mixer
Jackie Gonneau Additional Voices (voice)
David Cowgill Additional Voices (voice)
Randy Kerber Orchestrator
John Wong Animation
Dan Read Visual Development
Paul Pape Additional Voices (voice)
Rick Moore Layout
Anne Lockhart Additional Voices (voice)
Frank E. Eulner Supervising Sound Editor
Scott Beattie Layout
Amy Lawson Smeed Animation
Jenny Lewis Assistant Director (voice)
Mark Henley Layout
Mark Walton Rhino (voice)
Marshall Winn Dialogue Editor
K. C. Roeyer Animation
Gregory Miller Visual Development
Simon Christen Animation
Paul A. Felix Art Direction
David Womersley Visual Development
Jim Likowski Foley Editor
Brian Kesinger Layout
James Baker Animation
Sam Marin Animation
Nathan Greno Additional Voices (voice)