Lee Pace Phil Winslow Judy Greer Debbie Winslow Owen Wilson Marmaduke (voice) Emma Stone Mazie (voice) George Lopez Carlos (voice) Caroline Sunshine Barbara Winslow Finley Jacobsen Brian Winslow Steve Coogan Raisin (voice) Christopher Mintz-Plasse Giuseppe (voice) Fergie Jezebel (voice) Kiefer Sutherland Bosco (voice) Damon Wayans Jr. Thunder (voice) Marlon Wayans Lightning (voice) Sam Elliott Chupadogra (voice) William H. Macy Don Twombly David Walliams Anton Harrison Glenn McCuen Bodie Raugi Yu Drama Trainer Chris Colfer Drama Dog #2 (voice) Josh Gad Bandana Dog (voice) Ash Lee Male Executive Heather Doerksen Female Executive Nicole Muñoz 3rd OC Girl Jason Bryden Man on Bench Izaak Smith Basketball Captain Keith Dallas Emergency Road Worker P.J. Prinsloo Lead Fireman Colin Decker Fireman Charles Jarman Fireman Garvin Cross Fireman Chris Bradford Fireman Anjelah Johnson-Reyes Afghan #2 (voice) Devon Werkheiser Drama Dog #1 / Shroom Dog #2 / Golden Dog / Cocker Spaniel (voice) Hudson Thames Delinquent Dog (voice) Bernardo de Paula Purse Dog #2 (voice) Eddie « Piolin » Sotelo Purse Dog #3 (voice) Jack McGee Dalmatian (voice) Liza Lapira Party Dog #1 (voice) King Kedar Surfing Award Dog / Beach Dog #4 (voice) Ryan Devlin Beach Dog #2 (voice) Jeffrey Garcia Beach Dog #3 (voice)