Bobby Generic / Self - Live Action / Howard Generic / Simoka (81 episodes, 1990-1998)
Martha / Martha Generic (80 episodes, 1990-1998)
Uncle Ted / Ted Sven (75 episodes, 1990-1998)
Kelly / Kelly Generic (74 episodes, 1990-1998)
Roger / Great Grandpa Generic / Harry (63 episodes, 1990-1998)
Derek Generic (47 episodes, 1992-1996)
Jackie (44 episodes, 1991-1998)
Captain Squash (41 episodes, 1990-1998)
Meeker (36 episodes, 1990-1998)
Snerd / Phillip the Spider (32 episodes, 1990-1998)
Mrs. Orso (26 episodes, 1990-1998)
Derek (21 episodes, 1990-1991)
(21 episodes, 1990-1997)
(19 episodes, 1990-1997)
(18 episodes, 1990-1996)
Aunt Ruth Generic (13 episodes, 1990-1998)
Derek Generic (13 episodes, 1992-1998)
(10 episodes, 1990-1998)
Geriatric Park Owner / Jeff Goldplum / Woody Allen / Zookeeper (8 episodes, 1990-1996)
Wrestling Announcer (7 episodes, 1990-1993)
(7 episodes, 1991-1996)
Balladeer / Surly (7 episodes, 1990-1997)
(6 episodes, 1990-1994)
(5 episodes, 1991-1997)
Mrs. Hula (5 episodes, 1991-1993)
(5 episodes, 1990-1997)
(4 episodes, 1990-1993)
George (4 episodes, 1990-1993)
Markie (4 episodes, 1990-1994)
Dr. Noo / Harry's Father / Stage Coach Driver (4 episodes, 1990-1997)
(4 episodes, 1992-1994)
Babysitter / Buddy (3 episodes, 1990-1993)
(3 episodes, 1992-1993)
Constance / Nafoodjia (3 episodes, 1992-1995)
Emily Klatscal (3 episodes, 1993-1998)
(3 episodes, 1994-1997)
Biker / Guest / Neighbor (3 episodes, 1994-1995)
Self (2 episodes, 1991-1992)
(2 episodes, 1992-1997)
(2 episodes, 1992-1993)
Director (2 episodes, 1992-1993)
Karate Sensei / Mad Scientist (2 episodes, 1993-1994)
(2 episodes, 1995-1998)
Fabio / Rudio (2 episodes, 1995-1996)
(1 episode, 1994)
(1 episode, 1990)
(1 episode, 1991)
(1 episode, 1995)
Cowboy / Handy Dan (1 episode, 1990)
Ukelele Man (1 episode, 1994)
Singing Purple Fish (1 episode, 1990)
(1 episode, 1992)
Uncle Lou (1 episode, 1992)
Arsenio Hall (1 episode, 1992)
Self (1 episode, 1992)
Herb Leventhal (1 episode, 1992)
Gordon Hula (1 episode, 1992)
Mayor (1 episode, 1993)
(1 episode, 1993)
Kevin (1 episode, 1993)
Ms. Miller (1 episode, 1993)
Self (1 episode, 1993)
Bully (1 episode, 1993)
Anthony / Anthony's Dad (1 episode, 1994)
Self (1 episode, 1994)
Inkwell (1 episode, 1994)
(1 episode, 1996)
(1 episode, 1997)
Billy Big (1 episode, 1997)