Kaitlyn Maher as Tiny (voice)

Jed Rees as Roland

Tom Everett Scott as Charlie (voice)

David DeLuise as Steven

Carla Jimenez as Ida

George Newbern as Bark (voice)

John Ratzenberger as Mutt (voice)

Makenzie Moss as Lou

Diedrich Bader as Kano (voice)

Bonnie Somerville as Emily Rose (voice)

Jonathan Mangum as Rover (voice)

Obba Babatundé as Big Ears (voice)

Chris Coppola as Tune (voice)

Maulik Pancholy as Raj (voice)

Brian Hull as Murray (voice)

Juicy J as P-Diggy (voice)

Ziggy Marley as Dog Gnarly (voice)

Nikki Blonsky as Lady Paw Paw (voice)

Steve Valentine as Simon Growl (voice)

Jared Gertner as Puglay (voice)

Matt Weber as Blake Sheltie (voice)

Danny Woodburn as Bulldog (voice)

Lombardo Boyar as Doberman Guard (voice)

Hugh Scott as Westie (voice)

Susie Wall as ETV Correspondent

Jason Spisak as Australian Shepherd (voice)

Jesse Filkow as Boy

Christina Sicoli as Toots

Nicholas Harrison as Owen

Jocelyne Loewen as Sally