Full Cast — Hey Arnold! (1996–2004)

Francesca Marie Smith

Helga Pataki (voice)

Jamil Walker Smith

Gerald Johanssen (voice)

Dan Castellaneta

Big Arnold (voice) / Animal Control Officer (voice) / Grandpa Phil / Judge (voice) / Grandpa Phil / Nolo (voice) / Grandpa Phil / Chicken Man (voice) / Grandpa Phil / Nick Vermicelli (voice) / Grandpa Phil / Cop #1 (voice) / Grandpa Phil / Reporter (voice) / Delivery Man (voice) +5 more

Justin Shenkarow

Joey (voice) / Harold Berman / Boy on Bicycle (voice) / Harold Berman / Iggy (voice) / Harold Berman(voice) / Harold Berman (voice; uncredited) / Harold Berman (voice) / Harold Berman / Robert (voice)

Anndi McAfee

Phoebe Heyerdahl / Italian Girl / French Girl (voice) / Phoebe Heyerdahl / Worker #2 (voice) / Patrice (voice) / Phoebe Heyerdahl / Ruth P. McDougal (voice) / Phoebe Heyerdahl / Girl (voice) / Phoebe Heyerdahl / Woman (voice) / Phoebe Heyerdahl / Kid #2 / Phoebe Heyerdahl / Joy (voice) +3 more

Christopher Walberg

Stinky Peterson / Kyle (voice) / Stinky (voice) / Stinky Peterson (voice; uncredited) / Stinky Peterson / Bratty Kid #1 (voice) / Stinky Peterson (voice)

Phillip Van Dyke

Ludwig (voice) / Arnold (voice)

Spencer Klein

Arnold (voice)

Olivia Hack

Rhonda Wellington Lloyd (voice) / Rhonda Wellington Lloyd / Mary (voice)

Lane Toran

Wolfgang / French Boy (voice) / Arnold (voice) / Wolfgang (voice) / Arnold (singing voice)

Sam Gifaldi

Sid / Robert (voice) / Billy (voice) / Sid (voice)

Blake McIver Ewing

Eugene Horowitz (voice)

Craig Bartlett

Mop Guy (voice) / Big Man (voice) / Brainy (voice; uncredited) / Nashville Ned / Customer #1 (voice) / Minister (voice) / Brainy / DJ (voice) / Movie Man / Steve (voice) / Monkeyman (voice; uncredited) / Brainy / Paper Boy (voice) / Brainy / Astronaut / Stockbroker (voice) +12 more

Tress MacNeille

Grandma Gertie / Miss Slovak (voice) / Grandma Gertie / Mayor Dixie (voice) / Movie Woman (voice) / Grandma Gertie / Harold's Aunt (voice) / Grandma Gertie / Interviewer #2 (voice) / Grandma Gertie (voice) / Grandma Gertie / Arnold's Mother (voice) / Miss Slovak (voice) / Grandma Gertie +2 more

Kath Soucie

Mrs. Berman (voice) / Mariam Pataki (voice) / Cecile (voice) / Agent (voice) / Mrs. Berman / Danny (voice) / Mrs. Berman / Miriam Pataki (voice) / Miriam Pataki / Nancy Woman (voice) / Miriam Pataki / Woman (voice) / Hillary / Martha (voice) / Miriam Pataki / Yolanda (voice) +5 more

Steve Viksten

Caesar (voice; uncredited) / Oskar Kokoshka / Cop #2 (voice) / Italian Boy (voice) / Oskar Kokoshka / Caesar (voice) / Oskar Kokoshka / Stagehand (voice) / Oskar Kokoshka / Casa Paradiso Spokesman (voice) / Oskar Kokoshka / Smitty (voice) / Oskar Kokoshka (voice) / Oskar Kokoshka +3 more

Maurice LaMarche

Big Bob Pataki / Clerk (voice) / Cecile's Dad / Jacques (voice) / Revis (voice) / Big Bob Pataki / TV Man (voice) / Abner (voice) / Big Bob Pataki (voice) / Big Bob Pataki / Moderator (voice) / Big Bob Pataki / Organ Grinder (voice) / Stinky's Father / Stinky's Grandpa (voice) +8 more

Dom Irrera

Ernie Potts / Paper Man (voice) / Stinky's Father (voice) / Ernie Potts / Old Man (voice) / Ernie Potts (voice) / Guard / Mr. Feltz (voice)

Dan Butler

Mr. Simmons (voice; uncredited) / Mr. Simmons / Publisher (voice) / Mr. Simmons (voice) / Mr. Simmons / Scientist (voice) / Mr. Simmons / Houseboy (voice) / Mr. Simmons / Dispatcher (voice) / Mr. Simmons / Lila's Father (voice)

David Wohl

Principal Wartz / Bad Guy (voice) / Mr. Berman / Bus Driver (voice) / Principal Wartz / Announcer (voice) / Mr. Berman (voice) / Principal Wartz (voice)

Ben Diskin

Eugene Horowitz (voice) / Eugene Horowitz / Kid (voice)

Baoan Coleman

Mr. Hyunh (voice) / Oskar Kokoshka (voice)

James Keane

Mr. Green / EBN Announcer (voice) / Hospital Orderly (voice) / Mr. Green (voice; uncredited) / Mr. Green / Judge (voice) / Mr. Green (voice)

Adam Wylie

Curly Gammelthorpe (voice)

Lou Rawls

Harvey / Bus Driver (voice) / Harvey (voice) / Harvey / Pop Daddy (voice) / Harvey (voice; uncredited)

Christopher Castile

Eugene Horowitz (voice) / Eugene Horowitz / Robert (voice)

Mary Scheer

Suzie Kokoshka (voice) / Suzie Kokoshka / Interviewer #1 (voice)

Nika Futterman

Lorenzo's Mother (voice) / Olga Pataki (voice) / Cynthia (voice)

Danica Ivancevic

Officer Pudney (voice) / Mother / Woman (voice; uncredited) / Sabrina (voice) / Librarian (voice) / Receptionist (voice) / Flight Attendant (voice)

Lauren Robinson

Nadine (voice)

Marcus Toji

Park / Third Grader (voice) / Park (voice) / Park / Iggy (voice)

Rick Fitts

Mr. Johanssen (voice)

Avriel Epps

Timberly Johanssen (voice)

Jordan Warkol

Chocolate Boy / Jamie (voice) / Chocolate Boy (voice)

John Mariano

Vic / Morrie (voice) / Zamboni Jones / Banana Guy / Shady Guy (voice)

Shari Belafonte

Mrs. Johanssen (voice)

Michael Bacall

Tony (voice) / Torvald (voice) / Tommy (voice)

Joey Paul Jensen

Woman (voice) / Woman on Street (voice) / Mindy / Mrs. Uberman (voice) / Seymour's Mother (voice)

Jarrett Lennon

Eugene Horowitz (voice)

Tony Jay

Dr. Lipman (voice) / Rex Smythe-Higgins (voice) / Booming Voice (voice)

Ashley Buccille

Lila Sawyer (voice)

Tim Wiley

Edmund (voice) / Edmund / Fifth Grader #2 (voice)

Rick Corso

Dino Spumoni (voice)

Jim Belushi

Coach Wittenberg (voice)

Carlos Alazraqui

Minion (voice) / Frankie G. / Chas (voice) / Nigel / Man (voice)

Lisa Fuson

Miss Slovak (voice) / Danny's Mom / Bratty Kid #2 (voice) / Movie Woman (voice)

Danielle Judovits

Patricia "Big Patty" Smith (voice)

Maria Bamford

Mayor Dixie / Stinky's Grandma (voice) / Mayor Dixie (voice) / Iggy's Mother (voice)

Michael Welch

Elizabeth Ashley

Mrs. Vitello (voice)

Frank Martorana

Thug / Teen #3 (voice) / Burt (voice)

Mark Hamill

Grubby (voice) / Cop (voice)

Vincent Schiavelli

Pigeon Man (voice) / Mr. Bailey (voice)

Caroline Aaron

Moderator (voice) / Landlady (voice)

Billy Riback

TV Reporter / Announcer (voice) / Announcer / PSA Guy (voice)

Lacey Chabert

Ruth P. McDougal (voice)

Ron Perlman

Mickey Kaline (voice) / Mickey Kaline / Weiner Cooker (voice)

Elliott Gould

Rabbi Goldberg (voice)

Cathy Moriarty

Tish Wittenberg (voice)

Joey Stinson

Rex Smythe-Higgins III (voice)

Mary Gross

Nurse / Actress (voice) / Shelley (voice)

Lori Alan

Secretary / Cop / Candy Lady (voice) / Rhonda's Mother (voice)

Victor Samuel Lopez

Lorenzo (voice)

Bronson Pinchot

Director / Chauffeur (voice) / Ronnie Matthews (voice)

Gregg Berger

Lucky / Worker #1 (voice) / Policeman / Jolly Olly Boss (voice)

Candi Milo

The Parrot (voice) / Cherice (voice)