Kathy Najimy

Kathy Lane

Matt Frewer

The Cat in the Hat

Christopher Lloyd

Mr. Hunch

Patrick Stewart

Sergeant Mulvaney

Billy Crystal

The Voice of America (voice)

Robin Williams

The Father

Howie Mandel

Sam-I-Am (voice)

Andrea Martin

The Ad Woman

David Paymer

The Ad Man

J.D. Daniels

Marco (segment "Mulberry Street")

Eileen Brennan

The Who-Villain

Graham Jarvis

The Farmer

Brady Bluhm

Marco (segment "McElligot's Pool")

Andraé Crouch

Yertle

Bright Eyes

Mack

Maxi Anderson

Turtle Choir Member

Troy Burgess

Turtle Choir Member

Reggie Burrell

Turtle Choir Member

Rick Charles

Turtle Choir Member

Sandra Crouch

Turtle Choir Member

Kristle Murden

Turtle Choir Member (as Kristle Edwards)

Voncielle Faggett

Turtle Choir Member

David Gibson

Turtle Choir Member / Green Eggs and Ham Player

Tammie Gibson

Turtle Choir Member

Kathy Hazzard

Turtle Choir Member

Linda McCrary

Turtle Choir Member

Gene Montoya

Turtle Choir Member / Green Eggs and Ham Player

Kim O'Kelley

Turtle Choir Member

Alfie Silas

Turtle Choir Member

Kevin Stea

Turtle Choir Member

Bambi Swayze

Turtle Choir Member

Jonathan Webb

Turtle Choir Member

Zelda Williams

Daughter

Eleanor Columbus

Daughter

Raymond Del Barrio

Green Eggs and Ham Player

T.J. Espinoza

Green Eggs and Ham Player

Susan Lonergan

Green Eggs and Ham Player

Terry Lindholm

The Onceler

Kay E. Kuter

Dr. Seuss (voice)

Frank Welker

Additional Voice Overs (voice)

Malachi Pearson

Additional Voice Overs (voice)

Winston Churchill

Self - at Potsdam (archive footage) (uncredited)

Charles Durning

(voice) (uncredited)

June Foray

(voice) (archive footage) (uncredited)

Rudolf Hess

Self - with Hitler in Nuremberg (archive footage) (uncredited)

Adolf Hitler

Self (archive footage) (uncredited)

Bob Holt

(voice) (archive footage) (uncredited)

Boris Karloff

(voice) (archive footage) (uncredited)

William D. Leahy

Self - at Potsdam (archive footage) (uncredited)

Vyacheslav Molotov

Self - at Potsdam (archive footage) (uncredited)

Dr. Seuss

Self (archive footage)

Joseph Stalin

Self - at Potsdam (archive footage) (uncredited)

Julius Streicher

Self - with Hitler in Nuremberg (archive footage) (uncredited)

Paul Winchell

(voice) (archive footage) (uncredited)