Director/a
William Cameron Menzies
DIRECTOR/A
Reparto (por orden de créditos)
Helena Carter
Dr. Pat Blake
Arthur Franz
Dr. Stuart Kelston
Jimmy Hunt
David MacLean
Leif Erickson
Mr. George MacLean
Hillary Brooke
Mrs. Mary MacLean
Morris Ankrum
Col. Fielding
Max Wagner
Sgt. Rinaldi
William Phipps
Sgt. Baker
Milburn Stone
Capt. Roth
Janine Perreau
Kathy Wilson
Fay Baker
Mrs. Wilson(uncredited)
Barbara Billingsley
Kelston's Secretary(uncredited)
Peter Brocco
Brainard - Wilson's Aide(uncredited)
Charles Cane
Old Cop Blaine Who Vanishes(uncredited)
Tommy Cottonaro
Mutant(uncredited)
Richard Deacon
MP(uncredited)
Pete Dunn
John Eldredge
Mr. Turner(uncredited)
William Forrest
Gen. Mayberry(uncredited)
Bert Freed
Police Chief A.C. Barrows(uncredited)
Charles A. Gibbs
Lt. Blair(uncredited)
Gil Herman
Maj. Clary(uncredited)
Bob Herron
Martian(uncredited)
Todd Karns
Jim - Gas Station Attendant(uncredited)
Douglas Kennedy
Tall Cop Jackson Who Vanishes(uncredited)
Paul Klott
Lock Martin
Mutant Carrying David to 'Intelligence'(uncredited)
Harry Monty
Max Palmer
Mutant Carrying Dr. Blake to 'Intelligence'(uncredited)
Luce Potter
Martian Intelligence(uncredited)
Walter Sande
Police Desk Sgt. Finlay(uncredited)
Robert Shayne
Dr. Bill Wilson(uncredited)
George Spotts
Frank Wilcox
Pentagon Chief of Staff(uncredited)
Ed Wolff