Daniel Bosch

Bob

Marina Giulia Cavalli

Jane

Robert Marius

Lee

Luciano Pigozzi

Dr. Geoffrey

Charles Napier

Colonel Kovacks

Roberto Dell'Acqua

Guard (uncredited)

David Brass

Head Technician (uncredited)

Kenneth Peerless

Chopper Pilot (uncredited)

Michael Welborn

Security Officer (uncredited)

Albert Bronski

Security Officer Carlos (uncredited)

Donald Wilson

Technician (uncredited)

Frank Wannack

Guard (uncredited)

Curtis Carter

Boat Crew (uncredited)

Jeff Griffith

Security Officer Griffith

Philip Gordon

Security Guard killed by Snake (uncredited)

Antonio Margheriti