King Triton (voice)
Grandpa / Parasaurlophus (voice)
Grandpa (voice)
Grandpa (voice)
Grandpa (voice)
Gene Molinari
Grandpa / Lambeosaurus (voice)
Grandpa (voice)
Dr. Arnold Bowman
King Triton (voice)
Grandpa (voice)
Grandpa (voice)
Grandpa (voice)
Dr. Charlie Rollins
Inspector Kemp (archive footage)
Magician
Grandpa (voice)
Grandpa (voice)
King Colbert (voice)
Professor Screweyes (voice)
Reverend Pete
Magician
Uncle Al
Smokey
King Triton (voice)
Cmdr. Drury
Hal B. Keeler
Director / Dogcatcher (voice)
Mr. Bobrucz
Reverend Farrell
Rabbi Baumel
Vultor / Walt (voice)
Lyndon Johnson
A.J. Norbecker
Stanton Boyd
Lou
Mr. Crisp
Self
Red Hewitt
The Coach - Principal Cleveland
Ben Fryer
Woolly Bill Hitchcock
Mr. Kolenkhov
Kruse
Nick
Paul Wrightwood
Max Mencken
Inspector Kemp
Former FBI Agent Will
Mitchell Bernard
Broker
Hugh Simon
Dr. Julius Roth
Otto Bentwood
Dr. Sam Gillison
Les Hopkins
Franz Liebkind
Robert E. Sherwood
