On screen
Cast
22 credited performers
Rob Paulsen
Ogden Ostrich (voice)
David Paymer
Sheldon S. Cargo (voice)
Jonathan Harris
Stickley Rickets (voice)
Alice Ghostley
Pandora Rickets (voice)
Gregg Berger
Bud (voice)
Neil Ross
Ed (voice)
Greg Burson
Professor Edwin I. Relevant (voice)
Artwork unavailable
Susan Silo
(voice)
Laura Summer
(voice)
Maurice LaMarche
(voice)
Ron Taylor
The Unknown (voice)
Susanne Blakeslee
(voice)
Artwork unavailable
Jason Graae
(voice)
Tara Strong
(voice)
Frank Welker
(voice)
Patrick Pinney
(voice)
Artwork unavailable
Sharon Mack
(voice)
Roger Rose
(voice)
Danny Mann
(voice)
Artwork unavailable
Liz Georges
(voice)
Charlie Adler
Little White Lie (voice)
Pat Musick
(voice)