Character Name : Commander Harold 'Alan' Roberts

Original Name : Jock Mahoney

Gender : Male

Character Name : Margaret 'Maggie' Hathaway

Original Name : Shirley Patterson

Gender : Female

Character Name : Lt. Jack Carmen

Original Name : William Reynolds

Gender : Male

Character Name : Dr. Carl Hunter

Original Name : Henry Brandon

Gender : Male

Character Name : Capt. Burnham

Original Name : Douglas Kennedy

Gender : Male

Character Name : Machinist's Mate Steve Miller

Original Name : Phil Harvey

Gender : Male

Character Name : Officer at Briefing / Officer on Ship (uncredited)

Original Name : Kenner G. Kemp

Gender : Male

Character Name : Radio Operator (uncredited)

Original Name : Bing Russell

Gender : Male

Character Name : Officer at Briefing (uncredited)

Original Name : Bert Stevens

Gender : Male

Character Name : Man at Briefing (uncredited)

Original Name : Tom Coleman

Gender : Male