The Mad Monster (1942)

Approved  |   |  Drama, Horror, Romance  |  15 May 1942 (USA)
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Ratings: 3.1/10 from 1,099 users  
Reviews: 39 user | 20 critic

A mad scientist changes his simple-minded handyman into a werewolf in order to prove his supposedly crazy scientific theories - and exact revenge.



(original screenplay)
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Cast overview:
Johnny Downs ...
George Zucco ...
Anne Nagel ...
Sarah Padden ...
Gordon De Main ...
Prof. Fitzgerald (as Gordon DeMain)
Child's Mother - Susan
Reginald Barlow ...
Professor Warwick
Robert Strange ...
Professor Blaine
Henry Hall ...
Country Doctor
Ed Cassidy ...
Child's Father (as Edward Cassidy)
Eddie Holden ...
Jed Harper
John Elliott ...
Prof. Hatfield
Officer Dugan (as Charles Whitaker)
Gil Patric ...
Detective Lieutenant


Dr. Cameron has succeeded in his experiments with a serum which will turn a man into a wolf-like monster, and is ready to avenge himself on the men who caused his professional failure. He uses it on his gardener Petro and one after the other is killed by his creation. His daughter, Lenora, grows suspicious and confides with newspaper reporter Tom Gregory. Written by Les Adams <>

Plot Summary | Add Synopsis


The blood of a wolf he placed in the veins of a man... and created a monster such as the world has never known!






Release Date:

15 May 1942 (USA)  »

Also Known As:

The Mad Monsters  »

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:

| (RCA Sound System)

Aspect Ratio:

1.37 : 1
See  »

Did You Know?


George Zucco's estate set was reused by the cost-conscious set designers at PRC for Zucco's crypt in Dead Men Walk (1943). See more »


[Tom blames the mysterious killings on dinosaurs]
Tom Gregory: I understand they travelled around on their hind legs and made our present day public enemies look like horticultural specimens.
See more »


Featured in Horror Incorporated: The Mad Monster (1942) (2003) See more »

Frequently Asked Questions

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User Reviews

Kitsch, a Werewolf and an utterly mad scientist! What more could you wish for?
25 November 2004 | by (the Draconian Swamp of Unholy Souls) – See all my reviews

This is a really cool movie and, no…I'm not joking! The Mad Monster is a pleasant and fairly original camp-film obviously trying to pick in on the Universal Monster successes. But who cares if it can't live up to the preciously wealthy production values of those films? I sure don't and especially not since it features werewolves and insane men of science which are my two top favorite horror topics! It stars the infamous B-movie legend George Zucco as the very devoted – but equally insane – scientist Dr. Cameron who got banned from the academic community because of his unethical and inhuman experiments. Cameron plots a violent vengeance on those who discredited them and with his groundbreaking new formulas he manages to turn his slightly retarded gardener into a ravenous werewolf. While his cute daughter is unaware of what happens in her father's lab, Cameron sends out his creation to devour his scientific competitors. I can't stress this enough: this film is fun! Not very scary, of course, and the werewolf-transformations & killings mostly happen off-screen. And even when they do make an attempt to use special effects or make up it looks really cheap and kitschy. So, lovers of new-age computerized gore should avoid this at all costs. Zucco is really terrific and the madness can be seen in his eyes throughout the entire film! He even holds imaginary meetings in his basement, trying to convince the world his visions are brilliant! I love this; Zucco surely ranks amongst cinema's most memorable demented doctors. Glenn Strange also was an outstanding casting choice to play the not-so-clever guinea pig. Strange looks an awful lot like Lon Chaney Jr. who made himself immortal one year before by playing …. The Wolf Man! If you're intrigued by undiscovered horror gems, werewolf horror films or just ordinary cult-amusement this is your film! Highly recommended!

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