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 Alexander 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)