Smoky Cell is a thriller play by the British writer Edgar Wallace first staged in 1930. In America a group of detectives hunt down a notorious racketeer. It ran for 103 performances at Wyndham's Theatre in the West End from 16 December 1930 to 14 March 1931. The original cast included Finlay Currie, Percy Parsons, Charles Farrell, Harold Huth, Roy Emerton and James Carew, and was directed by Carol Reed. It marked Canadian actor Alexander Knox's London stage debut.