John Armstrong

Steve Armstrong

Clifford Harrington

Mark Gordon/Commander Robinson/Narrator/Additional Voices

Richard Murphy

Big Bert Armstrong

Nancy Culluci

Little John/Additional Voices

Gerri Sorrells

Jamie Robinson

William Ross

Dr Smith/Draco/Additional Voices

Don Johnson

Dr Ned Armstrong

Judith Sackheim

Dr Mary Ann Armstrong

Joseph Zucatti

Dr Hook/Additional Voices

Greg Starr

General Watson/Additional Voices

Richard Murphy

Zambajil

Tom Clark

Prince Zardoz

Patricia Kobiyashi

Zandra

Mike Worman

Zuhl

Avi Landau

Additional Voices

William Ross