Schauspieler
Owen Wilson (Marmaduke), George (Marmaduke), Spirit (Marmaduke), Huck, George Lopez (Carlos), Mai Tai, Emma Stone (Mazie), Christopher Mintz-Plasse (Giuseppe), Steve Coogan (Raisin), Fergie (Jezebel), Kiefer Sutherland (Bosco), Damon Wayans Jr. (Thunder), Marlon Wayans (Lightning), Sam Elliott (Chupadogra), Lee Pace (Phil Winslow), Judy Greer (Debbie Winslow), Caroline Sunshine (Barbara Winslow), Finley Jacobsen (Brian Winslow), Mandy Haines (Sarah Winslow), Milana Haines (Sarah Winslow), David Walliams (Anton Harrison), William H. Macy (Don Twombly), Glenn McCuen (Bodie), Frank Topol (Buff Owner), Graylen Cameron (Giant Teenage Boy), Alex Rockhill (Dog Catcher), Cameron Cowles (Skater Boy #1), John Daily (Skater Boy #2), Tyler Abiew (Skater Boy #3), Heather Doerksen (Female Executive), Ash Lee (Male Executive), Madison Desjarlais (Brunette Girl), Erin Kerr (Redhead Girl), Nicole Muñoz (3rd OC Girl), Christopher Attadia (Jock), Jason Bryden (Man on Bench), Raugi Yu (Drama Trainer), 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), Graham MacDonald (Orange County Policeman), David Stanfield (Announcer), Randall Montgomery (Sweater Dog), Hope Levy (Afghan #1), Anjelah Johnson-Reyes (Afghan #2), Devon Werkheiser (Drama Dog #1 / Shroom Dog #2 / Golden Dog / Cocker Spaniel), Chris Colfer (Drama Dog #2), David Z. Price (Shroom Dog #1 / Beach Dog #1 / Party Dog #2 / Beagle), Hudson Thames (Delinquent Dog), Francisco Ramos (Purse Dog #1), Bernardo De Paula (Purse Dog #2), Eddie 'Piolin' Sotelo (Purse Dog #3), Todd Glass (Doberman / Shasta), Ryan Devlin (Beach Dog #2), Jeffrey Garcia (Beach Dog #3), King Kedar (Surfing Award Dog / Beach Dog #4), Liza Lapira (Party Dog #1), Jack McGee (Dalmatian), Josh Gad (Bandana Dog), Blake (Jezebel), Dolly (Giuseppe), Giovanni V. Giusti (Duke Surfer), Mosie Hackett (Self), Sydney Imbeau (Little Girl), Oswald (Chupadogra)
