On screen
Cast
12 credited performers
Artwork unavailable
Ron Venable
O
Artwork unavailable
John Graham
Igua
Artwork unavailable
Bob Kaliban
Croak / No Lobes
Christopher Guest
No Lobes
Artwork unavailable
Clark Warren
No Lobes
Artwork unavailable
Mark Smith
Narrator
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Joseph Plewa
Bone
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Jonathon Schmock
Slick
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Jim Vallely
Stewie Babcock
Bill Murray
Dragon (voice)
Roger Carel
Additional Voices
Artwork unavailable
Arlette Thomas
Additional Voices