Embryo

Rock Hudson as Dr. Paul Holliston Diane Ladd as Martha Douglas Roddy McDowall as Frank Riley Anne Schedeen as Helen Holliston John Elerick as Gordon Holliston Vincent Baggetta as Collier Jack Colvin as Dr. Winston Dick Winslow as Forbes Barbara Carrera as Victoria Spencer

Fred J. Koenekamp Director of Photography Dick Warlock Stunts Joe Alves Production Design Ralph Nelson Director Jerry Brutsche Stunts