Phil Diffy (43 episodes, 2004-2006)
Pim Diffy (43 episodes, 2004-2006)
Lloyd Diffy (43 episodes, 2004-2006)
Barbara Diffy / Timekeeper (43 episodes, 2004-2006)
Keely Teslow (43 episodes, 2004-2006)
Curtis / Mr. Hackett (30 episodes, 2004-2006)
Debbie Berwick (15 episodes, 2004-2005)
Li'l Danny Dawkins / Lil Danny Dawkins (10 episodes, 2005-2006)
Tia (8 episodes, 2004-2005)
Owen (5 episodes, 2005-2006)
Candida Keegel (5 episodes, 2005)
Seth Wosmer (5 episodes, 2004-2005)
Joel Messerschmidt / Mr. Messerschmidt / Battina Messerschmidt (4 episodes, 2005-2006)
Bradley Benjamin Farmer (4 episodes, 2004)
Lana (4 episodes, 2004-2005)
Miss Winston (3 episodes, 2004-2005)
Mandy Teslow (2 episodes, 2005)
Bruno (2 episodes, 2005-2006)
Mrs.Feinstein (2 episodes, 2005-2006)
Via (2 episodes, 2005)
2030 Keely / 25 Year Old Keely (2 episodes, 2004-2005)
Myron (2 episodes, 2004-2005)
Tanner (2 episodes, 2004)
Grady Spaggett (2 episodes, 2005-2006)
Ms. Levy (2 episodes, 2004)
Mayor Da Luca (2 episodes, 2004-2005)
Mr. Smythe / Vice-Principal O'Donnell (2 episodes, 2004-2005)
Mr. Weatherwax (2 episodes, 2004)
Mr. Ginsberg (2 episodes, 2004)
2 Year Old Lloyd / Halloween Toddler (2 episodes, 2004)
Mr. Angst (2 episodes, 2005)
Nicholas Van Der Cal (2 episodes, 2004-2005)
Mr. Henderson / Mr.Henderson (1 episode, 2005)
Coach Buchinsky (1 episode, 2004)
Andy Baxley (1 episode, 2005)
Tara (1 episode, 2004)
Officer Bunkley (1 episode, 2004)
Ben Savage (1 episode, 2005)
Mrs. Henderson (1 episode, 2005)
Sarge Marge (1 episode, 2005)
Owner (1 episode, 2005)
Robby (1 episode, 2005)
Miss O'Leary (1 episode, 2005)
Helka (1 episode, 2005)
Kristy (1 episode, 2006)
Grace (1 episode, 2006)
Troy (1 episode, 2004)
Alice Da Luca (1 episode, 2004)
Dr. Gennaro (1 episode, 2004)
Mr. Fleet (1 episode, 2004)
Marla (1 episode, 2004)
Keith (1 episode, 2004)
Mr. Littletree (1 episode, 2005)
Nathan (1 episode, 2005)
Jerry (1 episode, 2005)
Curator (1 episode, 2005)
Leprechaun (1 episode, 2005)
Goth Kid (1 episode, 2005)
Kyle Speckle (1 episode, 2006)
Miss Donaldson (1 episode, 2004)
Frankie (1 episode, 2004)
Jorge (1 episode, 2004)
Doorman (1 episode, 2004)
Miss Hanks (1 episode, 2004)
Dangerous Dan Delgado (1 episode, 2004)
Nurse Krinsky (1 episode, 2004)
Silent Judy (1 episode, 2004)
Older Pim (1 episode, 2005)
Ms. Mip (1 episode, 2005)
Lyle Snooger (1 episode, 2005)
Einstein (1 episode, 2005)
Head Kid (1 episode, 2005)
Cat Lady (1 episode, 2005)
Simon (1 episode, 2006)
Mad Max (1 episode, 2004)
Sterling (1 episode, 2004)
Miss Mayberry (1 episode, 2004)
Chef Dupre (1 episode, 2004)
Yanoosh Ing (1 episode, 2004)
Chip (1 episode, 2004)
Cleo Washington (1 episode, 2004)
Julie (1 episode, 2004)
Older Nathan (1 episode, 2005)
Rick Singh (1 episode, 2005)
Henrietta (1 episode, 2005)
Isaac Newton (1 episode, 2005)
Anchorman (1 episode, 2005)
Girl #1 (1 episode, 2005)
Grandma Berwick (1 episode, 2004)
75 Year Old Phil (1 episode, 2004)
Future Teacher (1 episode, 2004)
Frog (1 episode, 2004)
Frank Rizzo (1 episode, 2004)
Darcy (1 episode, 2004)
Ms. Navin (1 episode, 2004)
Catherine (1 episode, 2004)
Crash (1 episode, 2004)
Kid (1 episode, 2004)
Fiona Lanky (1 episode, 2005)
5-year old Phil (1 episode, 2005)
Alex (1 episode, 2005)
Oog (1 episode, 2005)
Ticket Taker (1 episode, 2005)
Veronica (1 episode, 2004)
Beefeater (1 episode, 2004)
Mercer (1 episode, 2004)
Gunter (1 episode, 2004)
Roger (1 episode, 2005)
Stacy Pimpkins (1 episode, 2005)
Sumo Wrestler (1 episode, 2004)
Accordian Player (1 episode, 2004)
Cobb (1 episode, 2005)
Bavarian Dancer (1 episode, 2004)
Yoga Student (1 episode, 2004)
Goofy Kid (1 episode, 2004)
Lucky Pierre (1 episode, 2005)
Volcano Buyer (1 episode, 2005)
Jamie (1 episode, 2005)
Angry Dental Patient (1 episode, 2005)
Cornelius Beaurdry (uncredited) (3 episodes, 2004-2005)
Nacho (uncredited) (3 episodes, 2004-2005)
Marla's Friend (uncredited) (1 episode, 2004)
Bronze Medalist (uncredited) (1 episode, 2004)
Spectator (uncredited) (1 episode, 2004)
Manny (uncredited) (1 episode, 2004)
Kid Carrying Dog (uncredited) (1 episode, 2004)
Jake (uncredited) (1 episode, 2005)
Lady X (uncredited) (1 episode, 2005)
Jump Rope Girl (uncredited) (1 episode, 2005)
Myers (uncredited) (1 episode, 2005)
Friar Fred (uncredited) (1 episode, 2005)
Son (uncredited) (1 episode, 2005)
Bully (uncredited) (1 episode, 2005)
Crying Girl (uncredited) (1 episode, 2006)