'Legs' Larry Smith

Narrator

Stéphane Cornicard

Dan Morgan

Will Harrison-Wallace

Doctor Notanazi

Peter Dickson

Albert

Ruth Urquhart

Lorna

Anthony Rudd

Territorial Agent

Katy Maw

Snake

Jim Davis

Dr. Quent Brady (archive footage)

Robert Griffin

Dan Morgan (archive footage)

Joel Fluellen

Arobi (archive footage)

Barbara Turner

Lorna (archive footage)

Eduardo Ciannelli

Mahri (archive footage)

Vladimir Sokoloff

Dr. Lorentz

Tim Huntley

Territorial Agent (archive footage)