Elizabeth Allan and Robert Montgomery in The Mystery of Mr. X (1934)

Robert Montgomery in The Mystery of Mr. X (1934)

Elizabeth Allan, Henry Stephenson, and Lewis Stone in The Mystery of Mr. X (1934)

Elizabeth Allan and Ralph Forbes in The Mystery of Mr. X (1934)

Robert Adair and Leonard Mudie in The Mystery of Mr. X (1934)

Robert Montgomery and Ivan F. Simpson in The Mystery of Mr. X (1934)

Robert Montgomery, Henry Stephenson, and Lewis Stone in The Mystery of Mr. X (1934)

Elizabeth Allan, Robert Montgomery, and Henry Stephenson in The Mystery of Mr. X (1934)

Ivan F. Simpson in The Mystery of Mr. X (1934)