Robot Monster (1953): cast, story & where to watch
1953 · Film · ★ 4.5

Released in 1953, Robot Monster is a horror and science fiction film directed by Phil Tucker, running about 66 minutes. “Moon monsters launch attack against Earth! How can science meet the menace of astral assassins? New Science Fiction Thrills!” — that tagline sets the tone.
What it’s about. Ro-Man, an alien robot who greatly resembles a gorilla in a diving helmet, is sent to earth to destroy all human life. Ro-Man falls in love with one of the last six remaining humans, and struggles to understand how his programming can instruct him to kill her while his heart demands that he can't.
Who’s in it. Robot Monster stars George Nader as Roy, Claudia Barrett as Alice, Gregory Moffett as Johnny and John Mylong as The Professor, among others.
How it landed. With an audience score of 4.5/10, Robot Monster has proved divisive with audiences. It went on to earn $1M at the box office.
Where to watch. In US you can stream it on Cultpix and rent or buy it from Amazon Video. See the full, country-by-country breakdown on our where to watch Robot Monster page.
If you liked it. Fans of Robot Monster tend to enjoy Psycho, The Silence of the Lambs, The Shining and Alien.
Frequently asked
- Where can I watch Robot Monster (1953)?
- In US, Robot Monster is available to stream on Cultpix, and rent or buy from Amazon Video. Availability varies by country — check our where-to-watch page for every region.
- Is Robot Monster worth watching?
- Robot Monster holds an audience score of 4.5 out of 10, and is a strong pick if you enjoy horror and science fiction. Reactions are mixed, so it may depend on taste.
- Who stars in Robot Monster?
- Robot Monster stars George Nader, Claudia Barrett, Gregory Moffett, John Mylong and Selena Royle.
- When was Robot Monster released?
- Robot Monster was released in 1953, with a runtime of about 66 minutes.
