Giuliano Gemma

as Brent Landers

Ida Galli

as Lucy Tillson

Nello Pazzafini

as Gil Clawson

Pierre Cressoy

as Clayton Ranchester

Germano Longo

as Stan Clevenger

Massimo Righi

as Avery Ranchester

Roberto Camardiel

as Dr. Verne Barfield

Frank Braña

as Ranchester's henchman with red shirt