William Wintersole

as Abrom

as Tom Henderson

as Dr. Hunt

as Provost Marshall Ross

as Businessman

as Lab Technician

as Doctor in Operating Room

as The Captain

as Prof. Andrew Whitsett

as Tony's Doctor (uncredited)

as Chief Peck

as Dr. Paul Florino

as Dr. Percy

as Blythe

as Desk Clerk

as Alien

as Julius

as Club Manager

as Sanatorium Attendant (uncredited)

as Commander

as Referee

as Mr. Perrins

as Klaus

as Sheriff Gibbons

as Dr. Ramsay

as Lt. Col. John Teasdale

as Cmdr. Robbins

as Larry Benjamin

as Tom Cleveland

as Lieutenant Stennes

as Dr. McCandless

as A Patrolman

as The Captain