Guest Stars Matt Hill voices Griff Credit Only Nicole Oliver voices Kevin's Mom Tabitha St. Germain voices Melanie Tabitha St. Germain voices Andrea Brian Drummond voices Kevin's Dad Alberto Ghisi voices Kevin Scott McNeil voices Ignatius Peter Kelamis voices Tail Terrier Terry Klassen voices Tusky Husky Kelly Sheridan voices Mammoth Mutt Michael Dobson voices Bulldog Trevor Devall voices Hot Dog Phil Hayes voices Additional Voices Mark Oliver voices Mechanikat Nicole Bouma voices Snooky Wookums Dale Wilson voices Paw Pooch Ellen Kennedy voices Brainy Barker Russell Roberts voices Additional Voices Kathleen Barr voices Additional Voices Alvin Sanders voices Additional Voices Mark Hildreth voices Additional Voices Reece Thompson voices Additional Voices Lee Tockar voices Additional Voices Dave Ward voices Additional Voices French Tickner voices Additional Voices Louis Chirillo voices Additional Voices Pam Hyatt voices Additional Voices Noel Callaghan voices Additional Voices Ty Olsson voices Additional Voices Janyse Jaud voices Additional Voices Michael Daingerfield voices Additional Voices Cathy Weseluck voices Additional Voices Colin Murdock voices Additional Voices Brian Dobson voices Additional Voices Danny McKinnon voices Additional Voices Uncredited Terry Klassen voices Waddles Dale Wilson voices Artie