Dr. Katz (81 episodes, 1995-2002)
Ben Katz / Roger (81 episodes, 1995-2002)
Laura the Receptionist (81 episodes, 1995-2002)
Stanley / Mr. Hammer (73 episodes, 1995-2002)
Julie the Bartender / Julie (73 episodes, 1995-2002)
Todd the Video Store Guy / Todd / Todd the video guy. / Todd Barry (19 episodes, 1996-2002)
Dom (12 episodes, 1995-1999)
Ray (7 episodes, 1995-1997)
Fred (5 episodes, 1996-1997)
Louis (4 episodes, 1996-2002)
Ron (4 episodes, 1997-1998)
Sam (3 episodes, 1997-1999)
Kevin (3 episodes, 1995-1999)
Dave (3 episodes, 1995-2002)
Andy (3 episodes, 1995-1997)
Bill (3 episodes, 1995-1997)
Lew (3 episodes, 1996-1998)
Wanda / Wanda Sykes (2 episodes, 1999)
Carol (2 episodes, 1995-1999)
Joy (2 episodes, 1995-1996)
Jon / Jon Stewart (2 episodes, 1997-1999)
Mitch (2 episodes, 1999)
Brian (2 episodes, 1996-1998)
Marc (2 episodes, 1996)
Jake / Jake Johannsen (2 episodes, 1997-1999)
Paul (2 episodes, 1999)
Al (2 episodes, 1999)
Laura (2 episodes, 1995-1998)
Wendy (2 episodes, 1995-1998)
Steven (2 episodes, 1995-1997)
Emo (2 episodes, 1995-1996)
Kathy (2 episodes, 1996-1998)
Conan / Conan O'Brien (2 episodes, 1997-2002)
David (2 episodes, 1997-1998)
Jim (2 episodes, 1997-1998)
Patton (2 episodes, 1998)
Tom (2 episodes, 1998)
Gilbert (2 episodes, 1998)
Brian (2 episodes, 1998)
Mitch (2 episodes, 1998)
Sandra (1 episode, 1996)
Eddie (1 episode, 1996)
Bob Balaban (1 episode, 1999)
Margaret (1 episode, 1999)
Dana (1 episode, 1999)
Ian (1 episode, 1999)
Ed (1 episode, 1999)
Tom (1 episode, 1999)
Julie (1 episode, 1999)
Rich (1 episode, 1999)
Merrill (1 episode, 1999)
Greg (1 episode, 1999)
Matt (1 episode, 1999)
Larry (1 episode, 1995)
Tony (1 episode, 1995)
Barry (1 episode, 1995)
Rita (1 episode, 1995)
Winona (1 episode, 1996)
Bob (1 episode, 1996)
Jeffrey (1 episode, 1996)
Janeane (1 episode, 1996)
Kevin (1 episode, 1996)
Garry (1 episode, 1996)
Richard (1 episode, 1996)
Judy (1 episode, 1996)
Cathy (1 episode, 1996)
Jack (1 episode, 1996)
David (1 episode, 1996)
Jeff (1 episode, 1996)
Tom (1 episode, 1996)
Richard (1 episode, 1997)
Julia (1 episode, 1997)
Lisa (1 episode, 1997)
Jeff (1 episode, 1997)
Bob (1 episode, 1997)
Dave (1 episode, 1997)
Rodney (1 episode, 1997)
David (1 episode, 1997)
Caroline (1 episode, 1997)
Joan (1 episode, 1997)
Dick (1 episode, 1997)
Tom (1 episode, 1997)
Elayne (1 episode, 1997)
Al (1 episode, 1997)
Bobby (1 episode, 1997)
Mike (1 episode, 1997)
Ritch (1 episode, 1997)
Mark (1 episode, 1997)
Tony (1 episode, 1997)
Margaret (1 episode, 1997)
Robert (1 episode, 1997)
Lizz (1 episode, 1997)
Ken (1 episode, 1997)
Don (1 episode, 1997)
Dr. Harvey Greenberg (1 episode, 1997)
Ben Stiller (1 episode, 1998)
Sarah Silverman (1 episode, 1998)
Roz Katz (1 episode, 1998)
David Duchovny (1 episode, 1998)
Susie (1 episode, 1998)
Denis (1 episode, 1998)
Harry (1 episode, 1998)
Vocals (1 episode, 1998)
John (1 episode, 1998)
Robert (1 episode, 1998)
Jann (1 episode, 1998)
Bonnie McFarlane (1 episode, 1998)
Paul (1 episode, 1998)
Kevin (1 episode, 1998)
James (1 episode, 1998)
Chris Snyder (1 episode, 1998)
Jeff Goldblum (1 episode, 1999)
Teri (1 episode, 1999)
Ted Alexandro (1 episode, 1999)
Catherine (1 episode, 2002)
Whoopi Goldberg (1 episode, 2002)
Steve (1 episode, 2002)
Ken (1 episode, 2002)
Cindy (uncredited) (1 episode, 1998)