Pepper Ann

Kathleen Wilhoite

Pepper Ann Pearson (voice) (113 episodes), Didi O'Shaunassy (voice) (1 episode)

April Winchell

Lydia Pearson (voice) (113 episodes), Ms. Abriola Stark (voice) (3 episodes), Sherrie Spleen (voice) (1 episode), Didi's Mom / Additional Voices (voice) (1 episode)

Clea Lewis

Nicky Little (voice) (113 episodes)

Danny Cooksey

Milo Kamalani (voice) (113 episodes)

Don Adams

Principal Hickey (23 episodes), Principal Herbert Hickey (voice) (2 episodes)

Luke Perry

Stewart Walldinger (voice) (25 episodes)

Kimmy Robertson

Gwen Mezzrow (23 episodes)

Jeff Bennett

(5 episodes), Dieter Liederhosen / Craig Bean / Shelf McClain (voice) (1 episode), J.B. / Additional Voices (voice) (1 episode), Dieter Liederhosen (voice) (1 episode), Dieter Liederhosen / Shelf McClain (voice) (1 episode), Dieter Liederhosen / Pink-Eye Pete (voice) (1 episode), Dieter Liederhosen / Emit Swink / Shelf McClain (voice) (1 episode), Grandpa Leo / Additional Voices (voice) (1 episode), Craig Bean (voice) (1 episode), Craig Bean / Dieter Liederhosen / Vittorio (voice) (1 episode), Noah / Additional Voices (voice) (1 episode), Larry / Additional Voices (voice) (1 episode)

Candi Milo

Constance Goldman (voice) (5 episodes), Rose (voice) (1 episode), Constance Goldman / Deeana / Biana (voice) (1 episode)

Pamela Adlon

Moose Pearson (voice) (4 episodes), Moose Pearson / Goose O'Shaunassy (voice) (1 episode)

Alex Trebek

(5 episodes)

Paddi Edwards

Vera Groober-Schwartz (voice) (3 episodes)

Tara Strong

(2 episodes), Brenda / Female Scientist (voice) (1 episode)

Jess Harnell

Male Scientist / Nigel / Mailman (voice) (1 episode), (1 episode), Abe (voice) (1 episode)

Kath Soucie

Mail Lady (voice) (1 episode), Cissy Rooney / Supermodel Mindy (voice) (1 episode), Mean Girl (voice) (1 episode)

Jenna Von Oy

Trinket St. Blair (voice) (3 episodes)

Mark Hamill

(3 episodes)

Kathy Najimy

Coach Doogan (voice) (2 episodes)

Hedy Burress

Effie Shrugg (voice) (2 episodes)

Don Lake

Mr. Sherman Finky / Butler (voice) (1 episode), Mr. Sherman Finky (voice) (1 episode)

Tino Insana

Uncle JoJo Diggety (voice) (2 episodes)

Susan Tolsky

Aunt Janie Diggety (voice) (1 episode), Aunt Janie Diggety / Aunt Lanie (voice) (1 episode)

Cree Summer

Tessa James / Vanessa James (voice) (1 episode), Crying Girl (voice) (1 episode)

Jim Cummings

Mr. Roland Carter (voice) (2 episodes)

Hadley Kay

(2 episodes)

Kenn Michael

Lamar Abu Dabe (voice) (1 episode), Lamar Abudabe (voice) (1 episode)

Jodi Benson

(1 episode), Amber O'Malley (voice) (1 episode)

Isabel Sanford

(1 episode), Bernice (voice) (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)

Jason Marsden

Prep School Guy (voice) (1 episode)

Wallace Langham

Wayne Macabre (voice; uncredited) (1 episode)

Cam Clarke

Stewart Walldinger (voice) (1 episode)

Sue Rose

Moira (voice) (1 episode)

Bebe Neuwirth

Ms. Bronte Bladdar (voice) (1 episode)

Nicole Sullivan

Tundra Woman (voice) (1 episode)

Evel Knievel

(1 episode)

Lauren Tom

(1 episode)

Brad Goodchild

Director (90 episodes)

Sherie Pollack

Director (23 episodes)

Tom Warburton

Lead Character Designer (113 episodes)

Kathleen Wilhoite

Theme Song Performance (113 episodes)

Laura McCreary

Writer (23 episodes)

Matthew Negrete

Writer (19 episodes)

Scott M. Gimple

Writer (19 episodes)

Mirith J.S. 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)

Sean Whalen

Writer (2 episodes)

Eddy Sato

Writer (2 episodes)

Emily Kapnek

Writer (2 episodes)

Allison Heartinger

Writer (2 episodes)

Roger Reitzel

Writer (1 episode)

Eve Ahlert

Writer (1 episode)

Dennis Drake

Writer (1 episode)

Sue Rose

Writer (1 episode)