Guest Stars Joseph May voices Additional Voices Kathleen Barr voices Isis 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 Nicole Bouma voices Snooky Wookums Dale Wilson voices Paw Pooch Ellen Kennedy voices Brainy Barker Terry Klassen voices Tusky Husky Russell Roberts voices Additional Voices Matt Hill 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 Christopher Gaze voices Additional Voices Don Brown voices Additional Voices Aidan Drummond voices Additional Voices Michael Donovan voices Additional Voices Mark Acheson voices Additional Voices Bill Mondy voices Additional Voices Uncredited David Avalon voices Robbie the Robin