Guest Stars Joseph May voices Additional Voices Matt Hill voices Thundermutt Credit Only Tabitha St. Germain voices Melanie Tabitha St. Germain voices Andrea Nicole Oliver voices Kevin's Mom Brian Drummond voices Kevin's Dad Brian Drummond voices Streaky 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 Nicole Bouma voices Snooky Wookums Dale Wilson voices Paw Pooch Terry Klassen voices Tusky Husky Mark Oliver voices Mechanikat 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 Michael Donovan voices Additional Voices Don Brown voices Additional Voices Christopher Gaze voices Additional Voices Mark Acheson voices Additional Voices Bill Mondy voices Additional Voices Uncredited Peter Kelamis voices Bud Peter Kelamis voices Lou