The Sign of Four
Sherlock Holmes and Dr. Watson try to track down the Great Mogul, the second-largest diamond in the world.
![](https://image.tmdb.org/t/p/w500/yU0yVIswpZLPCPFigM2aRvKsTwj.jpg)
Cast
![](https://image.tmdb.org/t/p/h632/e90jCJwnzjnxXstcdPrVZOtLUpp.jpg)
Ian Richardson
Sherlock Holmes![](https://image.tmdb.org/t/p/h632/uQDDrqedUEt35AONYAXeDavIWHx.jpg)
David Healy
Dr. John Watson![](https://image.tmdb.org/t/p/h632/yBUOIfMR6NlVW8WSNHxLmjlnKTX.jpg)
Thorley Walters
Major John Sholto![](https://image.tmdb.org/t/p/h632/vuQcwBBi0JBLe8T3uTmGFBhde0l.jpg)
Michael O'Hagan
Mordecai Smith![](https://image.tmdb.org/t/p/h632/LoIGKqUw3d58MrVsLpw22goYCK.jpg)
Cherie Lunghi
Mary Morstan![](https://image.tmdb.org/t/p/h632/k3IUS7Sob2XidCE0ERdXE5ixihH.jpg)
Joe Melia
Jonathan Small![](https://image.tmdb.org/t/p/h632/gjLyrCyTw3Hvjv5MStc8QoWRgW4.jpg)
Terence Rigby
Inspector Layton![](https://image.tmdb.org/t/p/h632/2nfF8QT8uRKhrW2a6px9DSj4ygK.jpg)
Clive Merrison
Bartholomew Sholto![](https://image.tmdb.org/t/p/h632/8tr8Jc5LOmtUwBMk41G1JrhU7nH.jpg)
Richard Heffer
Thaddeus Sholto![](https://image.tmdb.org/t/p/h632/rNyJjeAP0PnQnKukqNbRMZHpxX6.jpg)
John Benfield
McMurdo![](https://image.tmdb.org/t/p/h632/g8CKwOHttw3JO0n8QgzQp7AXiLf.jpg)
Gordon Rollings
Mr. Sherman![](https://image.tmdb.org/t/p/h632/jDpvPfBpQi73udIp448Ij8NKOKZ.jpg)
Robert Russell
WilliamsImages
Videos
![](https://img.youtube.com/vi/JgpLr5U0Cho/maxresdefault.jpg)
Sherlock Holmes - Intro to "The Sign of Four" (1983)
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Cast16 cast members
Crew18 crew members
Teasers1 video
![](https://img.youtube.com/vi/JgpLr5U0Cho/maxresdefault.jpg)