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