Cast 40
Kathleen Wilhoite
Pepper Ann (voice) (113 episodes)
Danny Cooksey
Milo (voice) (113 episodes)
Clea Lewis
Nicky (voice) (113 episodes)
April Winchell
Mom (voice) (113 episodes)
Luke Perry
Stewart Walldinger (voice) (25 episodes)
Don Adams
Principal Hickey (23 episodes)Principal Hickey (voice) (2 episodes)
Kimmy Robertson
Gwen Mezzrow (23 episodes)
Jeff Bennett
(5 episodes)Noah / Additional Voices (voice) (1 episode)Grandpa Leo / Additional Voices (voice) (1 episode)Craig Bean (voice) (1 episode)Dieter Liederhosen / Shelf McClain (voice) (1 episode)Dieter Liederhosen / Pink-Eye Pete (voice) (1 episode)Dieter Liederhosen (voice) (1 episode)Dieter Liederhosen / Emit Swink / Shelf McClain (voice) (1 episode)Larry / Additional Voices (voice) (1 episode)Craig Bean / Dieter Liederhosen / Vittorio (voice) (1 episode)Dieter Liederhosen / Craig Bean / Shelf McClain (voice) (1 episode)J.B. / Additional Voices (voice) (1 episode)
Candi Milo
Constance Goldman (voice) (5 episodes)Rose (voice) (1 episode)Constance Goldman / Deeana / Biana (voice) (1 episode)
Alex Trebek
(5 episodes)
Pamela Adlon
Moose Pearson (voice) (4 episodes)Moose Pearson / Goose O'Shaunassy (voice) (1 episode)
Mark Hamill
(3 episodes)
Tara Strong
(2 episodes)Brenda / Female Scientist (voice) (1 episode)
Paddi Edwards
Vera Groober-Schwartz (voice) (3 episodes)
Jess Harnell
(1 episode)Abe (voice) (1 episode)Male Scientist / Nigel / Mailman (voice) (1 episode)
Jenna von Oy
Trinket (voice) (3 episodes)
Kath Soucie
Cissy Rooney / Supermodel Mindy (voice) (1 episode)Mail Lady (voice) (1 episode)Mean Girl (voice) (1 episode)
Hadley Kay
(2 episodes)
Jodi Benson
Amber O'Malley (voice) (1 episode) (1 episode)
Isabel Sanford
(1 episode)Bernice (voice) (1 episode)
Tino Insana
Uncle Jo Jo (voice) (2 episodes)
Kathy Najimy
Coach Doogan (voice) (2 episodes)
Don Lake
Mr. Sherman Finky / Butler (voice) (1 episode)Mr. Sherman Finky (voice) (1 episode)
Hedy Burress
Effie Shrugg (voice) (2 episodes)
Jim Cummings
Mr. Roland Carter (voice) (2 episodes)
Susan Tolsky
Aunt Janie Diggety / Aunt Lanie (voice) (1 episode)Aunt Janie Diggety (voice) (1 episode)
Cree Summer
Tessa James / Vanessa James (voice) (1 episode)Crying Girl (voice) (1 episode)
Kenn Michael
Lamar Abu Dabe (voice) (1 episode)Lamar Abudabe (voice) (1 episode)
Lauren Tom
(1 episode)
Nicole Sullivan
Tundra Woman (voice) (1 episode)
Evel Knievel
(1 episode)
Bebe Neuwirth
Ms. Bladdar (voice) (1 episode)
Jason Marsden
Prep School Guy (voice) (1 episode)
Wallace Langham
Wayne Macabre (voice; uncredited) (1 episode)
Shaun Fleming
Cookie (voice) (1 episode)
Maurice LaMarche
Chuck Pearson / Jeweler (voice) (1 episode)
Max Brooks
Worried Executive #1 (voice) (1 episode)
Phil LaMarr
Stubborn Executive / Hippie Guy (voice) (1 episode)
Cam Clarke
Stewart Walldinger (voice) (1 episode)
Directing 2
Brad Goodchild
Director (90 episodes)
Sherie Pollack
Director (23 episodes)
Sound 1
Kathleen Wilhoite
Theme Song Performance (113 episodes)
Visual Effects 1
Tom Warburton
Lead Character Designer (113 episodes)
Writing 17
Laura McCreary
Writer (23 episodes)
Scott M. Gimple
Writer (19 episodes)
Matthew Negrete
Writer (19 episodes)
Mirith J. Colao
Writer (18 episodes)
Nahnatchka Khan
Writer (15 episodes)
Madellaine Paxson
Writer (14 episodes)
David Hemingson
Writer (6 episodes)
Mo Rocca
Writer (5 episodes)
Eddie Guzelian
Writer (3 episodes)
Allison Heartinger
Writer (2 episodes)
Emily Kapnek
Writer (2 episodes)
Sean Whalen
Writer (2 episodes)
Dennis Drake
Writer (1 episode)
Roger Reitzel
Writer (1 episode)
Eve Ahlert
Writer (1 episode)