Margot Kidder
Solitaire (voice)
Roddy McDowall
Nuggit (voice)
Michael Nouri
Boulder (voice)
Telly Savalas
Magmar (voice)
Arthur Burghardt
Turbo (voice)
Ike Eisenmann
Nick (voice)
Bernard Erhard
Cy-Kill (voice)
Marilyn Lightstone
Crasher (voice)
Morgan Paull
Matt (voice)
Lou Richards
Leader-1 (voice)
Leslie Speights
A.J. (voice)
Frank Welker
Scooter (voice)
Michael Bell
Slimestone / Granite / Narligator (voice)
Foster Brooks
Stoneheart / Fossil Lord (voice)