Character Name : Col. Joe Parkman

Original Name : Craig Stevens

Gender : Male

Character Name : Dr. Nedrick 'Ned' Jackson

Original Name : William Hopper

Gender : Male

Character Name : Marge Blaine

Original Name : Alix Talton

Gender : Female

Character Name : Gen. Mark Ford

Original Name : Donald Randolph

Gender : Male

Character Name : Prof. Anton Gunther

Original Name : Florenz Ames

Gender : Male

Character Name : Corporal

Original Name : Paul Smith

Gender : Male

Character Name : Lt. Fred Pizar

Original Name : Paul Campbell

Gender : Male

Character Name : Sgt. Pete Allen

Original Name : Pat Conway

Gender : Male

Character Name : Lou

Original Name : Phil Harvey

Gender : Male

Character Name : Mrs. Farley

Original Name : Helen Jay

Gender : Female

Character Name : State Trooper

Original Name : Bing Russell

Gender : Male

Character Name : Capt. Frank Carver

Original Name : David McMahon

Gender : Male

Character Name : Narrator (voice)

Original Name : Marvin Miller

Gender : Male

Character Name : Photographer (uncredited)

Original Name : Michael Forest

Gender : Male

Character Name : C-47 Pilot (uncredited)

Original Name : Sumner Williams

Gender : Male