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)