# The Mysterious Mr. M (1946)

A federal agent and an insurance investigator must stop an evil scientist trying to steal a revolutionary engine design using a drug that forces people to do his bidding. 13-chapter cliffhanger serial Dennis Moore as Agent Grant Farrell Richard Martin as Detective Lt. Kirby Walsh Pamela Blake as Shirley Clinton Joseph Crehan as Police Chief Dan Blair Edmund MacDonald as Anthony Waldron Danny Morton as Derek Lamont Virginia Brissac as Cornelia Waldron Jack Ingram as William Shrag Byron Foulger as Wetherby Jane Randolph as Marina Lamont William Brooks as Jim Farrell Cyril Delevanti as Prof. Jackson Parker

- Kind: Film
- Year: 1946
- By: Universal Pictures
- Genres: Drama, Science fiction, Crime, Science, Adventure
- Archive: [Internet Archive](https://archive.org/details/mysterious-mr-m)
- Licence or status: [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/) (as the archive states it)
- Who can watch: Teens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/ia/mysterious-mr-m?play=1)