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