Helga Pataki (voice) (186 Episodes)

Gerald Johanssen (voice) (186 Episodes)

Grandpa Phil (voice) (152 Episodes)

Harold Berman (voice) (107 Episodes)

Phoebe Heyerdahl (voice) (102 Episodes)

Stinky Peterson (voice) (84 Episodes)

Arnold (voice) (75 Episodes)

Arnold (voice) (73 Episodes)

Rhonda Wellington Lloyd (voice) (65 Episodes)

Arnold (voice) (50 Episodes)

Sid (voice) (45 Episodes)

Eugene Horowitz (voice) (42 Episodes)

Brainy (voice) (15 Episodes)

Grandma Gertie (voice) (20 Episodes)

Miriam Pataki (voice) (14 Episodes)

Oskar Kokoshka (voice) (18 Episodes)

Big Bob Pataki (voice) (15 Episodes)

Ernie Potts (voice) (20 Episodes)

Mr. Simmons (voice) (17 Episodes)

Principal Wartz (voice) (14 Episodes)

Eugene Horowitz (voice) (18 Episodes)

Mr. Hyunh (voice) (17 Episodes)

Curly Gammelthorpe (voice) (10 Episodes)

Mr. Green (voice) (9 Episodes)

Harvey (voice) (9 Episodes)

Eugene Horowitz (voice) (8 Episodes)

Suzie Kokoshka (voice) (8 Episodes)

Olga Pataki (voice) (4 Episodes)

Mother / Woman (voice; uncredited) (1 Episodes)

Nadine (voice) (5 Episodes)

Park (voice) (3 Episodes)

Mr. Johanssen (voice) (5 Episodes)

Timberly Johanssen (voice) (5 Episodes)

Chocolate Boy (voice) (4 Episodes)

Vic / Morrie (voice) (2 Episodes)

Mrs. Johanssen (voice) (4 Episodes)

Torvald (voice) (2 Episodes)

Woman on Street (voice) (1 Episodes)

Eugene Horowitz (voice) (4 Episodes)

Rex Smythe-Higgins (voice) (2 Episodes)

Lila Sawyer (voice) (4 Episodes)

Edmund (voice) (3 Episodes)

Dino Spumoni (voice) (3 Episodes)

Coach Wittenberg (voice) (3 Episodes)

Frankie G. / Chas (voice) (1 Episodes)

Movie Woman (voice) (1 Episodes)

Patricia "Big Patty" Smith (voice) (3 Episodes)

Iggy's Mother (voice) (1 Episodes)

(2 Episodes)

Mrs. Vitello (voice) (2 Episodes)

Burt (voice) (1 Episodes)

Grubby (voice) (1 Episodes)

Pigeon Man (voice) (1 Episodes)

Landlady (voice) (1 Episodes)

TV Reporter / Announcer (voice) (1 Episodes)

Ruth P. McDougal (voice) (2 Episodes)

Mickey Kaline (voice) (1 Episodes)

Rabbi Goldberg (voice) (2 Episodes)

Tish Wittenberg (voice) (2 Episodes)

Rex Smythe-Higgins III (voice) (2 Episodes)

Rhonda's Mother (voice) (1 Episodes)

Nurse / Actress (voice) (1 Episodes)

Lorenzo (voice) (2 Episodes)

Director / Chauffeur (voice) (1 Episodes)

Policeman / Jolly Olly Boss (voice) (1 Episodes)

Cherice (voice) (1 Episodes)

(1 Episodes)

(1 Episodes)

(1 Episodes)

(1 Episodes)

(1 Episodes)

(1 Episodes)

(1 Episodes)

(1 Episodes)

Maria (voice) (1 Episodes)

(1 Episodes)

(1 Episodes)

(1 Episodes)

(1 Episodes)

Lasombra (1 Episodes)

Himself (1 Episodes)

Ray Doppel (voice) (1 Episodes)

Curly (voice) (1 Episodes)

Stoop Kid (voice) (1 Episodes)

Connie (voice) (1 Episodes)

Maria's Dad / Cabby (voice) (1 Episodes)

Man #1 (voice) (1 Episodes)

Lana Vail (voice) (1 Episodes)

The Mad Engineer (voice) (1 Episodes)

Teen #1 / Teen #2 (voice) (1 Episodes)

Mai Hyunh (voice) (1 Episodes)

Tucker Wittenberg (voice) (1 Episodes)

Tony B. / Philly D. (voice) (1 Episodes)

Blind Man / Newscaster (voice) (1 Episodes)

Torvald's Mother (voice) (1 Episodes)

Jamie O Johanssen (voice) (1 Episodes)

Mr. Purdy (voice; uncredited) (1 Episodes)

Big Bob Jingle Singer (voice) (1 Episodes)

Joey Stevenson (voice) (1 Episodes)

Sam the Sewer King (voice) (1 Episodes)

Berlitz Teacher / Stylist (voice) (1 Episodes)

Miss Felter (voice) (1 Episodes)

Teenage Bully (voice) (1 Episodes)

Mr. Packenham (voice) (1 Episodes)

Don Reynolds (voice) (1 Episodes)

Dino Spumoni (singing voice) (1 Episodes)

Lieutenant Major Goose (voice) (1 Episodes)

Madame Blanche (voice) (1 Episodes)

Mickey the Weasel / Fifth Grader #1 (voice) (1 Episodes)

Wally / Announcer (voice) (1 Episodes)

Dan (voice) (1 Episodes)

Sherm (voice) (1 Episodes)

Phoebe's Father (voice) (1 Episodes)

Phoebe's Mother (voice) (1 Episodes)

Emily Dickinson Trophy (voice) (1 Episodes)

Mr. Wacko (voice) (1 Episodes)

Robbie Fisher (voice) (1 Episodes)

Fifth Grader (voice) (1 Episodes)

Little Kid (voice) (1 Episodes)

Travis Randall / Mr. Hyunh's Singing (voice) (1 Episodes)

Boy in Crowd (voice) (1 Episodes)

Jackie Lee (voice) (1 Episodes)

Doug LeSham (voice) (1 Episodes)

Ronnie Matthews (singing voice) (1 Episodes)

Floyd / Slim (voice) (1 Episodes)

Iggy (voice) (1 Episodes)

Inga (voice) (1 Episodes)

Woman / Kid #3 (voice) (1 Episodes)

Pearl Simmons (voice) (1 Episodes)

Agatha Caulfield (voice) (1 Episodes)

Marcy (voice) (1 Episodes)

Mr. Leichliter (voice) (1 Episodes)

3rd Grader (voice) (1 Episodes)

Crony (voice) (1 Episodes)

Big Gino (voice) (1 Episodes)

Jamie O Johanssen (voice) (1 Episodes)

Librarian / Kid (voice) (1 Episodes)

Mitzi (1 Episodes)