Alan Marshal

as Dr. David Trent

as Hal Crane

as Raymond Armbruster

as Ted

as Captain Anthony Travis

as (archive footage)

as John Ashwood

as Richard Mason

as Dick

as Bob Vincent

as Andre Dorlay

as Roger Peyton

as Leslie Yates

as Steve Reynolds

as Phoebus

as Jerrold Hunter

as Dr. Stephen 'Steve' Melford

as Marquis Andre D'Abbencourt

as Michael Shaw

as Walter Crawford

as Jeffrey Clavering

as Captain William 'Willie' O'Shea

as Capt. d'Ornano

as Justin Laurie

as Robert Landis

as Capt. De Trevignac

as Larry Littrell

as Warren Millett (as Alan Marshall)

as Noel Reynolds

as James Kincaid Alias Duane Jefferson

as Bart Grover

as Col. Lucius Starkey

as William Pryor