Hey Arnold!

Francesca Marie Smith

Helga Pataki (voice)

Jamil Walker Smith

Gerald Johanssen (voice)

Dan Castellaneta

Grandpa Phil (voice)

Justin Shenkarow

Harold Berman (voice)

Anndi McAfee

Phoebe Heyerdahl (voice)

Phillip Van Dyke

Arnold (voice)

Spencer Klein

Arnold (voice)

Olivia Hack

Rhonda Wellington Lloyd (voice)

Lane Toran

Arnold (voice)

Blake McIver Ewing

Eugene Horowitz (voice)

Craig Bartlett

Brainy (voice)

Tress MacNeille

Grandma Gertie (voice)

Kath Soucie

Miriam Pataki (voice)

Maurice LaMarche

Big Bob Pataki (voice)

Dom Irrera

Ernie Potts (voice)

Dan Butler

Mr. Simmons (voice)

David Wohl

Principal Wartz (voice)

Ben Diskin

Eugene Horowitz (voice)

Baoan Coleman

Mr. Hyunh (voice)

Adam Wylie

Curly Gammelthorpe (voice)

James Keane

Mr. Green (voice)

Lou Rawls

Harvey (voice)

Christopher Castile

Eugene Horowitz (voice)

Mary Scheer

Suzie Kokoshka (voice)

Nika Futterman

Olga Pataki (voice)

Marcus Toji

Park (voice)

Rick Fitts

Mr. Johanssen (voice)

Jordan Warkol

Chocolate Boy (voice)

John Mariano

Vic / Morrie (voice)

Shari Belafonte

Mrs. Johanssen (voice)

Michael Bacall

Torvald (voice)

Joey Paul Jensen

Mindy / Mrs. Uberman (voice)

Jarrett Lennon

Eugene Horowitz (voice)

Tony Jay

Rex Smythe-Higgins (voice)

Ashley Buccille

Lila Sawyer (voice)

Jim Belushi

Coach Wittenberg (voice)

Carlos Alazraqui

Nigel / Man (voice)

Lisa Fuson

Danny's Mom / Bratty Kid #2 (voice)

Danielle Judovits

Patricia "Big Patty" Smith (voice)

Maria Bamford

Mayor Dixie (voice)

Michael Welch

Elizabeth Ashley

Mrs. Vitello (voice)

Mark Hamill

Cop (voice)

Vincent Schiavelli

Mr. Bailey (voice)

Caroline Aaron

Landlady (voice)

Lacey Chabert

Ruth P. McDougal (voice)

Ron Perlman

Mickey Kaline (voice)

Elliott Gould

Rabbi Goldberg (voice)

Cathy Moriarty

Tish Wittenberg (voice)

Lori Alan

Rhonda's Mother (voice)

Mary Gross

Nurse / Actress (voice)

Victor Samuel Lopez

Lorenzo (voice)

Bronson Pinchot

Director / Chauffeur (voice)

Gregg Berger

Policeman / Jolly Olly Boss (voice)

Candi Milo

The Parrot (voice)

Haley Joel Osment

Jess Harnell

Jeremy Suarez

Henry Gibson

Jack Angel

Andy Dick

Fred Willard

Pat Corley

Mayim Bialik

Maria (voice)

Zelda Rubinstein

Georgia Engel

Michael McKean

Kathie Lee Gifford

Brian Doyle-Murray

Lasombra

Davy Jones

Himself

Danny Cooksey

Stoop Kid (voice)

Pamela Hayden

Connie (voice)

Michael Donovan

Maria's Dad / Cabby (voice)

Quinton Flynn

Man #1 (voice)

Christine Ebersole

Lana Vail (voice)

Danny Strong

Teen #1 / Teen #2 (voice)

Hiep Thi Le

Mai Hyunh (voice)

Grant Gelt

Tucker Wittenberg (voice)

Max Casella

Tony B. / Philly D. (voice)

Kevin Michael Richardson

Blind Man / Newscaster (voice)

DeeDee Rescher

Torvald's Mother (voice)

Ben Aaron

Jamie O Johanssen (voice)

Michael Fishman

Joey Stevenson (voice)

David L. Lander

Sam the Sewer King (voice)

Lloyd Sherr

Berlitz Teacher / Stylist (voice)

Julia Louis-Dreyfus

Miss Felter (voice)

Daniel Stern

Mr. Packenham (voice)

Harvey Korman

Don Reynolds (voice)

Alan Paul

Dino Spumoni (singing voice)

Kathy Najimy

Madame Blanche (voice)

Marty York

Mickey the Weasel / Fifth Grader #1 (voice)

John Schuck

Wally / Announcer (voice)

Clancy Brown

Dan (voice)

George Takei

Phoebe's Father (voice)

Jean Smart

Phoebe's Mother (voice)

Carol Kane

Emily Dickinson Trophy (voice)

Jamie Farr

Mr. Wacko (voice)

Sam McMurray

Robbie Fisher (voice)

Ashley Tesoro

Fifth Grader (voice)

Jer Adrianne Lelliott

Little Kid (voice)

Randy Travis

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

Wendy Hammers

Jackie Lee (voice)

Peter Scolari

Doug LeSham (voice)

Joseph Ashton

Iggy (voice)

Jane Carr

Inga (voice)

Moira Quirk

Woman / Kid #3 (voice)

Mitzi McCall

Pearl Simmons (voice)

Rose Marie

Agatha Caulfield (voice)

Tim Curry

Mr. Leichliter (voice)

Josh Ryan Evans

3rd Grader (voice)

Phil LaMarr

Jamie O Johanssen (voice)

Laraine Newman

Librarian / Kid (voice)

Phyllis Diller

Mitzi