Mister X or Mr. X is commonly used as a pseudonym for someone whose name is secret or unknown. Mister X may refer to:
Comics
Video games
- Mr. X, the villain in the video game Streets of Rage
- The T-103 Tyrant, antagonist in the Resident Evil video game series
Movies and television
Pseudonymous users
- George F. Kennan, American historian, in his essay "The Sources of Soviet Conduct"
- Carl Sagan, American astrnomer, in an essay on his experiences with marijuana
- Norman Wexler, American screenwriter, in Bob Zmuda's Andy Kaufman Revealed
- The longtime boyfriend of American radio talk show host, Robin Quivers
Other uses
- Mr X (novel), by Peter Straub
- Mr X is the title of a song by Ultravox from their Vienna album
See also
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