Claude Ewart King was an English-born character actor and unionist, who appeared in American silent film. With his distinctive wavy hair, King appeared on both stage and screen. He served his country, Great Britain, in World War I in Field Artillery, reaching the rank of Major and surviving the war. He began his stage career in his native country, before emigrating to the US. In 1919, he appeared on Broadway in support of Ethel Barrymore in the play Declassee.

London After Midnight is a lost 1927 American silent mystery horror film directed and co-produced by Tod Browning and starring Lon Chaney, with Marceline Day, Conrad Nagel, Henry B. Walthall and Polly Moran. The film was distributed by Metro-Goldwyn-Mayer, and was written by Waldemar Young, based on the story "The Hypnotist" which was written by Browning. Merritt B. Gerstad was the cinematographer, and the sets were designed by Cedric Gibbons and Arnold Gillespie. Harry Sharrock was the assistant director. The film cost $151,666.14 to produce, and grossed $1,004,000. Chaney's real-life make-up case can be seen in the last scene of the film sitting on a table, the only time it ever appeared in a film.