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 Mister X (Marvel Comics), a supervillain in the Marvel Universe Mister X (Vortex), the protagonist in Dean Motter's comic book series of that title The Amazing Mr X (comics), Britain's first superhero, who first appeared in The Dandy comic in 1944 Video games Mr. X (Streets of Rage), the villain in the video game series Streets of Rage The villain in the video game The Ship The final villain in the video game Kung-Fu Master The pseudonym of Dr. Wily in Mega Man 6 Xander Payne, a character from the Archie Mega Man The pseudonym of Olga Gurlukovich during the Big Shell Incident in Metal Gear Solid 2: Sons of Liberty T-103, a.k.a. Mr. X, a Tyrant Bio Organic Weapon (B.O.W. for short) in Resident Evil 2 and its remake Film and television Mister X (1958 film), a 1958 Soviet musical film directed by Yuli Khmelnitsky Mister X (1967 film), a 1967 Italian superhero film directed by Piero Vivarelli also known as Avenger X Mr. X (1987 film), a 1987 Bollywood sci-fi film starring Amol Palekar directed by Khwaja Ahmad Abbas Mr. X (2015 film), a 2015 Bollywood sci-fi film starring Emraan Hashmi Mr. X, a recurring puppet on The Canadian Howdy Doody Show Mr. X, a recurring arch-criminal of comic Arabic films played by Fouad el-Mohandes Mr. X, in the animated series The X's Mr. X, a villain in the anime series Lupin III Mr. X (Simpsons), Homer's pseudonym in The Simpsons episode "The Computer Wore Menace Shoes" X (The X-Files), a character in the television series The X-Files The Amazing Mr. X, a.k.a. The Spiritualist, a 1948 thriller film Mr. X, the main character in the 1940s and 1950s radio and TV series The Man Called X Mr. X, an assassin in the 2008 film Wanted, played by David O'Hara Mr. X, a character who appears in the Fringe episode "Lysergic Acid Diethylamide" Mr. X, the pseudonym for Goofy in the animated short Aquamania Mr. X, a Teenage Mutant Ninja Turtles character associated with Mondo Gecko The placeholder name the farmer is given when he gets amnesia in the Shaun the Sheep Movie Mr. X, a secondary character in Big Time Rush Mr. X (Amphibia character), a character in Amphibia "Mr. X" (Amphibia