Ellie Riggs (17 episodes, 2002-2003)
Ben (16 episodes, 2002-2003)
Edgar (16 episodes, 2002-2003)
Susan (16 episodes, 2002-2003)
Dr. Don Zimmerman / Dr. Zimmerman (16 episodes, 2002-2003)
Ingvar (11 episodes, 2002-2003)
Elevator Guy / Johnny / Johnny Sanchez (3 episodes, 2002)
Vanessa (2 episodes, 2002)
Producer (2 episodes, 2002-2003)
Band Member (2 episodes, 2002)
Fred (2 episodes, 2003)
Angela / Intern (1 episode, 2002)
Groom / Man (2 episodes, 2002)
Roman (1 episode, 2003)
Richard Karn (1 episode, 2003)
Robert (1 episode, 2002)
Monica (1 episode, 2002)
Vicki Gerwich (1 episode, 2002)
George Takei (1 episode, 2003)
Veronica (1 episode, 2003)
Analyst (1 episode, 2003)
Security Guard (1 episode, 2003)
Miguel (1 episode, 2002)
Worker (1 episode, 2002)
Promoter (1 episode, 2002)
Fireman (1 episode, 2002)
Bartender (1 episode, 2002)
Pizza Delivery Guy (1 episode, 2002)
Man (1 episode, 2002)
Carol (1 episode, 2003)
George Gray (1 episode, 2003)
Assistant Director (1 episode, 2003)
Waitress (1 episode, 2002)
Homeless Man (1 episode, 2002)
Penguin (1 episode, 2002)
Cop (1 episode, 2003)
Klinka (1 episode, 2003)
Announcer (1 episode, 2003)
Client (1 episode, 2002)
Waitress #2 (1 episode, 2002)
Andrea Barlow (1 episode, 2003)
Jennie (1 episode, 2003)
Security guard (1 episode, 2003)
Young Guy (1 episode, 2002)
Attractive Woman (1 episode, 2002)
Lab intern (1 episode, 2003)
Flight Attendant (1 episode, 2003)
Attractive Man (1 episode, 2002)
Diane Singer (1 episode, 2002)
Tow Guy (1 episode, 2002)
Father of the Bride (1 episode, 2002)
Nana (1 episode, 2002)
Zoe (1 episode, 2003)
Daisy (1 episode, 2003)
Dexter (1 episode, 2003)
Billy (1 episode, 2003)
Tommy (1 episode, 2003)
Jockey (1 episode, 2003)
Krishna Guy (1 episode, 2003)
Restaurant Patron (1 episode, 2003)
Joe (1 episode)
Production Assistant (1 episode)
Jazz Fan (uncredited) (2 episodes, 2002)
Tango Dancer (uncredited) (1 episode, 2002)
Hostess (uncredited) (1 episode, 2002)
Don's friend (uncredited) (1 episode)