Where to watch The Mysterious Mr. M (1946) in the UK
The Mysterious Mr. M (1946) is not currently listed on any UK streaming, rental, or purchase service. Last verified on 13 May 2026 by ScreenSearch.
1000 startling adventures! 1000 weird sensations!
An evil scientist known as "Mr. M." uses a drug he has developed called "hypnotreme" to help steal submarine equipment. Federal agent Grant Farrell is dispatched to find the mysterious villain and stop his nefarious plans.
Streaming options in the United Kingdom
Updated daily from The Movie Database. Outbound links open the provider directly.
This may be because: (a) the title hasn't been released in the UK yet, (b) it's on physical media only, or (c) the licence has temporarily lapsed. Streaming availability changes frequently — check back daily.
Last verified: — sourced from The Movie Database. Machine-readable: Markdown · JSON.
Cast & crew
Top-billed cast in The Mysterious Mr. M.
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Edmund MacDonaldAnthony Waldron -
Pamela BlakeShirley Clinton -
Danny MortonDerek Lamont -
Virginia BrissacCornelia Waldron -
Joseph CrehanDan Blair -
Jack IngramWilliam Shrag -
Dennis MooreAgent Grant Farrell -
Richard MartinDetective Lt. Kirby Walsh
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The Mysterious Mr. M — frequently asked questions
Where can I watch The Mysterious Mr. M in the UK?
The Mysterious Mr. M (1946) is not currently listed by any UK streaming, rental, or purchase service in our daily-updated TMDB feed. It may be on physical media, an aggregator, or pending a UK release. Check back later — availability changes frequently.
Is The Mysterious Mr. M on Netflix, Disney+ or Amazon Prime Video in the UK?
The Mysterious Mr. M is not currently included with any major UK subscription service. It may still be available to rent or buy.
How accurate is this film's availability data?
Availability is sourced from The Movie Database (TMDB), which in turn pulls from JustWatch. Listings are refreshed daily. For purchase decisions, the provider's own site is the source of truth.
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