Guest Stars Joseph May voices Additional Voices Matt Hill voices Griff Credit Only Tabitha St. Germain voices Andrea Tabitha St. Germain voices Melanie Nicole Oliver voices Kevin's Mom Brian Drummond voices Kevin's Dad Scott McNeil voices Ignatius Peter Kelamis voices Tail Terrier Kelly Sheridan voices Mammoth Mutt Michael Dobson voices Bulldog Trevor Devall voices Hot Dog Alberto Ghisi voices Kevin Phil Hayes voices Additional Voices Ellen Kennedy voices Brainy Barker Terry Klassen voices Tusky Husky Dale Wilson voices Paw Pooch Mark Oliver voices Mechanikat Nicole Bouma voices Snooky Wookums Russell Roberts voices Additional Voices Kathleen Barr voices Additional Voices Jay Brazeau voices Additional Voices Shannon Chan-Kent voices Additional Voices Kirby Morrow voices Additional Voices Gabe Khouth voices Additional Voices Paul Dobson voices Additional Voices Lee Tockar voices Stretch-O-Mutt Aidan Drummond voices Additional Voices Don Brown voices Additional Voices Michael Donovan voices Additional Voices Christopher Gaze voices Additional Voices Mark Acheson voices Additional Voices Bill Mondy voices Additional Voices Uncredited Danny McKinnon voices Squeaky David Avalon voices Ramone Max Charles voices Puff Dale Wilson voices Artie Terry Klassen voices Waddles