- Ian James Corlett
- Â Andy / ... 78 episodes, 2001-2007
- Holly Gauthier-Frankel
- Â Teri / ... 53 episodes, 2001-2007
- Daniel Brochu
- Â Danny / ... 52 episodes, 2003-2007
- Arthur Holden
- Â Al Larkin / ... 52 episodes, 2003-2007
- Susan Glover
- Â Freida Larkin / ... 52 episodes, 2003-2007
- Bruce Dinsmore
- Â Jervis Coltrane / ... 52 episodes, 2003-2007
- Jessica Kardos
- Â Jen Larkin 52 episodes, 2003-2007
- Jenna von Oÿ
- Â Jen Larkin 28 episodes, 2001-2007
- Rick Jones
- Â Various / ... 2 episodes, 2004-2007
- Colleen O'Shaughnessey
- Â Lori / ... 27 episodes, 2001-2007
- Cathy Cavadini
- Â Mom / ... 26 episodes, 2001-2002
- Jaclyn Linetsky
- Â Lori 26 episodes, 2003-2005
- Bumper Robinson
- Â Danny / ... 26 episodes, 2001-2002
- Dee Bradley Baker
- Â Al Larkin / ... 26 episodes, 2001-2002
- Eleanor Noble
- Â Lori 26 episodes, 2006-2007
- Jessica Kardos
- Â Jen / ... 20 episodes, 2003-2007
- Mark Hauser
- Â Lik / ... 7 episodes, 2003-2007
- Craig Francis
- Â Leech / ... 7 episodes, 2003-2007
- Matt Holland
- Â Craig / ... 7 episodes, 2003-2007
- Danny Cooksey
- Â Peter Lik 5 episodes, 2001-2007
- Scott Parkin
- Â Andrew Leech / ... 5 episodes, 2001-2007
- Elizabeth Daily
- Â Additional Voices 5 episodes, 2001-2007
- Kath Soucie
- Â Additional Voices 4 episodes, 2001-2007
- Bronwen Mantel
- Â Additional voices 4 episodes, 2001-2007
- Terrence Scammell
- Â Principal DeRosa / ... 4 episodes, 2003-2005
- Michael Yarmush
- Â Martin 3 episodes, 2003-2005
- Tony Neef
- Â Andy Larkin 2 episodes, 2006-2007
- Carlos Alazraqui
- Â Craig 1 episode, 2001
- Mathew Mackay
- Â Vic 'Mush' Mushkowitz 1 episode, 2005
- Oliver Grainger
- Â Brian 1 episode, 2005
- Dawn Ford
- Â Bobby 1 episode, 2006
- Garry Chalk
- Â Various (uncredited) 26 episodes, 2006-2007
- Stevie Louise Vallance
- Â Various (uncredited) 26 episodes, 2006-2007
- Peter Oldring
- Â Various (uncredited) 26 episodes, 2006-2007
- Rob Tinkler
- Â Various (uncredited) 26 episodes, 2006-2007
- Devan Cohen
- Â Various (uncredited) 26 episodes, 2006-2007
- Richard Newman
- Â Various (uncredited) 26 episodes, 2006-2007
- Julie Lemieux
- Â Various (uncredited) 26 episodes, 2006-2007
- Ron Rubin
- Â Various (uncredited) 26 episodes, 2006-2007
- Emilie-Claire Barlow
- Â Various (uncredited) 26 episodes, 2006-2007
- Jamie Watson
- Â Various (uncredited) 26 episodes, 2006-2007
- Adrian Truss
- Â Various (uncredited) 26 episodes, 2006-2007
- David Berni
- Â Various (uncredited) 26 episodes, 2006-2007
- Ian Busher
- Â Various (uncredited) 26 episodes, 2006-2007
- Adam Cabral
- Â Various (uncredited) 26 episodes, 2006-2007