Skip to content

123MVIESWatch Your Favorite Movies Online

Movies TV-Series Top Rated

Search movies or series

Browse

Movies
TV-Series
Top Rated
Genres

Genres

Action
Adventure
Animation
Comedy
Crime
Documentary

About

About
FAQ
Privacy
Terms

123MVIESWatch Your Favorite Movies Online

Browse and discover movies and TV series — ratings, cast, trailers, and where to watch them legally on the services you already have.

This product uses the TMDB API but is not endorsed or certified by TMDB. Streaming availability data provided by JustWatch via TMDB.

© 2026 123 Movies. A discovery guide — we do not host or stream any video content.

Sherlock Holmes and the Secret Weapon poster

Sherlock Holmes and the Secret Weapon

Suspense! Thrills! Adventure!

6.4145 votes19421h 8mReleased

Mystery
Thriller
Crime

In the midst of World War II, Sherlock Holmes rescues the Swiss inventor of a new bomb-sight from the Gestapo and brings him to England, where he quickly falls into the clutches of the evil Professor Moriarty.

Director: Roy William Neill
Released: 25 December 1942
Studio: Universal Pictures
IMDb: View listing

Trailer

Top Cast

Basil Rathbone
Sherlock Holmes
Nigel Bruce
Doctor Watson
Lionel Atwill
Professor Moriarty
William Post Jr.
Dr. Franz Tobel
Kaaren Verne
Charlotte Eberli

Dennis Hoey

Inspector Lestrade

Holmes Herbert

Sir Reginald

Mary Gordon

Mrs. Hudson

Harry Cording

Jack Brady (uncredited)

Harold De Becker

Peg Leg (uncredited)

Paul Fix

Mueller (uncredited)

Henry Victor

Professor Frederic Hoffner (uncredited)

John Burton

RAF Officer (uncredited)

Paul Bryar

Swiss Waiter (uncredited)

Whit Bissell

London Bobbie (uncredited)

Rudolph Anders

Braun (uncredited)

Colin Kenny

Scotland Yard Detective (uncredited)

George Burr Macannan

Gottfried (uncredited)

Harry Woods

Kurt (uncredited)

More Like This

The Woman in Green

The Scarlet Claw

A Study in Terror

Terror by Night

The Hound of the Baskervilles

Ministry of Fear

Enola Holmes 3

Sherlock Holmes and the Voice of Terror

Young Sherlock Holmes

The Man Who Knew Too Much

Sabotage

Sherlock: The Abominable Bride

The Hound of the Baskervilles

The Hound of the Baskervilles

Sherlock Holmes Faces Death

Foreign Correspondent

Where to Watch

Region

Stream with a subscription

Amazon Prime Video
fuboTV
MGM+ Amazon Channel
Philo
MGM Plus
Pure Flix
Starz Amazon Channel
FlixFling
FilmBox+
Cineverse
Starz
Amazon Prime Video with Ads
Starz Apple TV Channel
Troma NOW
FilmBox Live Amazon Channel
Great American Pure Flix Amazon Channel
Artiflix

Watch free

Kanopy
Hoopla
FlixHouse
Darkroom
Public Domain Movies
Fawesome
The Roku Channel

Rent

Amazon Video
Apple TV Store
Fandango At Home
FlixFling

Buy

Amazon Video
Apple TV Store
Fandango At Home
FlixFling

Open on JustWatch↗

Availability data for United States provided by JustWatch via TMDB. Listings can change without notice — check the provider before subscribing.

Pluto TV

Plex

Plex Channel

Amazon Prime Video Free with Ads

Cineverse

Xumo Play

Mometu

Tubi TV

Sherlock Holmes and the Secret Weapon (1942) | 123 Movies