Special Guest Stars Michael Rennie as Magnus Guest Stars Katherine Justice as Helen Patricia Smith as Edna Greely William Smithers as Nat Greely Co Starring Frank Marth as Alien #1 Dabney Coleman as Captain Mitchell Ross Harry Lauter as Alien #2 Paul Carr as Billy Stearns Erik Holland as M.P. Alien Robert Doyle as Sgt. Walter Ruddell Johnny Jensen as Young Nat
