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Doctor Double X 01

Doctor Double X is an enemy of Batman.

Origin

Simon Ecks developed a means by which to create an energy twin that could commit criminal acts independent of its host form. To distinguish between the two, "Doctor X" wore a costume with a single X emblem upon his chest, while "Doctor Double X" (appropriately enough) wore a costume with two letters stitched upon his chest. Doctor Double X first faced Batman and his teenage partner Robin many years ago and was able to distract them by making them believe that they only faced one opponent, when in fact, they were facing two. Ultimately, the Dynamic Duo were able to capture Doctor X and send him to prison, but he was freed soon after by Doctor Double X.

Free from prison, Doctor Double X attempted to bait Batman into a trap, but Batman was ready for him. Deciding to give the Doctor a taste of his own medicine, Batman allowed a Batman robot to take his place as Double X's victim. While the Doctor believed that he had captured Batman, the real Batman emerged and turned the tables on him. Doctor Double X was apprehended and taken to the Happydale Sanitarium. During this time, Simon Ecks lost his memory of his scientific and criminal career.

Years later, Ecks regained his memory and developed another duplicator device that enabled him to escape from the Sanitarium. He matched wits once again with Batman, although this time, Batman was able to defeat him by building his own machine that generated an energy duplicate of himself.

Doctor Double X was not seen again for many years. When he emerged a third time, he was defeated by the combined efforts of Batman and Superman.

Television History

Doctor Double X BTBATB

In the show Batman the Brave and the Bold, Doctor Double X appears in the episode "A Bat Divided". He tries to start a nuclear meltdown to increase his doppelgänger's power. However the blast results in Batman splitting up and the creation of the hero Firestorm. He later kidnappes Firestorm and put him in a machine to transfer his power to his doppelgänger. However the Batmen frees Firestorm and they defeat Double X. After that his machine is used to return Batman. He later makes a cameo in the episode "Joker the Vile and the Villainess" in a bar where villains hang out. In this show he is voiced by Ron Perlman.

           Batman Villains

Comics
Amanda Waller | Amygdala | Anarky | Azrael | Baby Doll | Bane | Black Glove | Black Mask | Blockbuster I | Blockbuster II | Brother EYE | Calculator | Calendar Man | Carmine Falcone | Catman | Catwoman | Circus of Strange | Clayface | Clock King | Club of Villains | Cluemaster | Composite Superman | Condiment King | Copperhead | Court of Owls | Crazy Quilt | Crime Doctor | Dark Archer | David Cain | Deacon Blackfire | Deadshot | Deathstroke | Doctor Death | Doctor Dedalus | Doctor Double X | Doctor Hurt | Doctor Phosphorus | Electrocutioner | Emperor Blackgate | Firebug | Firefly | Floronic Man | Gearhead | General Ulysses Armstrong | Gorilla Boss | Gotham City Police Department | Grant Walker | Great White Shark | H.A.R.D.A.C. | Harley Quinn | Holiday | Holly Robinson | Humpty Dumpty | Hugo Strange | Hush | Jack the Ripper | James Gordon, Jr. | Jason Todd | Joe Chill | The Joker | Joker's Daughter | Key | KGBeast | King Snake | King Tut | Killer Croc | Killer Moth | Kite Man | Lady Shiva | League of Assassins | Leviathan | Lex Luthor | Lock-Up | Mad Hatter | Mad Monk | Magpie | Man-Bat | Maxie Zeus | Monk | Mr. Freeze | Mr. Toad | Mutants | Nightslayer | Nocturna | Nyssa Raatko | Onomatopoeia | Orca | Outsiders | Owlman | Penguin | Phosphorus Rex | Planet Master | Poison Ivy | Polka Dot Man | Professor Pyg Prometheus | Ra's al Ghul | Rag Doll | Ratcatcher | Reaper | Red Claw | Reverse-Flash | Riddler | Roland Daggett | Roxy Rocket | Royal Flush Gang | Rupert Thorne | Sal Maroni | Scarecrow | Sensei | Signalman | Sinestro | Snowman | Solomon Grundy | Spellbinder | Suicide Squad | Talia al Ghul | Tally Man | Ten-Eyed Man | Terrible Trio | Tiger Shark | Timecode | Tony Zucco | Tweedledum and Tweedledee | Two-Face | Ubu | Vandal Savage | Ventriloquist | Ventriloquist II | Ventriloquist III | Vertigo | Victim Syndicate | Victor Zsasz | Wrath | Zebra-Man

Movies
Batman (1989): Joker | Bob | Carl Grissom | Max Eckhardt | Vinnie Ricorso
Batman Returns: Penguin | Max Shreck | Catwoman | Charles "Chip" Shreck | Red Triangle Circus Gang (Organ Grinder, Poodle Lady, Tattooed Strongman, Stungun Clown, Thin Clown, Fat Clown, Sword Swallower & Knifethrower Dame)
Batman Forever: Riddler | Two-Face | Sugar & Spice | NygmaTech (Frogmen) | Neon Gang (Neon Gang Leader) | Salvatore Maroni
Batman & Robin: Poison Ivy | Mr. Freeze | Bane | Snowy Cones Thugs | Golums | Jason Woodrue
Batman Begins: Ra's al Ghul | League of Shadows (Scarecrow & Ra's Decoy) | Carmine Falcone | Victor Zsasz | Joe Chill
The Dark Knight: Joker | Two-Face | Sal Maroni | The Chechen | Gambol | Lau | Bank Manager | Michael Wuertz | Joker's Thugs (Thomas Schiff, Chuckles, Kilson, Bus Driver, Happy, Dopey & Grumpy & Truck Driver) | Burmese Bandit
The Dark Knight Rises: Bane | Talia al Ghul | League of Shadows (Barsad) | Catwoman | John Daggett