The Atomic Submarine

Lt. Cmdr. Richard 'Reef' Holloway

Cmdr. Dan Wendover

Dr. Carl Neilson Jr.

Sir Ian Hunt

Lt. David Milburn

CPO 'Grif' Griffin

Dr. Clifford Kent

Julie

Adm. Terhune

Justin Murdock

Helen Milburn

Frogman Carney

Frogman Powell (as Ken Becker)

Watkins

Narrator (voice)

Saucer Voice (voice)

Passerby (uncredited)

Passerby (uncredited)

Final film of Victor Varconi.

The film inspired the film Voyage to the Bottom of the Sea (1961) and the TV series Voyage to the Bottom of the Sea (1964). It was also remade as an episode of that series.

Final film of Jack Mulhall.

After the Tiger Shark rigs for "silent running," they continue to communicate over the loud speakers.

There is no Nobel Prize in oceanography.

The Magnetic North Pole is not located under the Geographic North Pole, which is where the UFO returns in the film to "recharge its batteries" from the Earth's magnetic field. Science had acknowledged this at least two decades before 1959, which was when the film had been released. More current maps show it shifting a bit to the north of Canada.

Narrator: It was foolish. It was insane. It was fantastic.

Voice of Spaceman: At last Commander, we meet as your people say... face to face!