Doctor Double X

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Doctor Double X
Detective Comics 316.jpg
Doctor Double X and Batman in Detective Comics #316.
Publication information
Publisher DC Comics
First appearance Detective Comics #261 (November 1958)
Created by Dave Wood, Sheldon Moldoff, Bob Kane
In-story information
Alter ego Dr. Simon Ecks
Abilities Ability to create a symbiotic energy-made duplicate that can fly, generate energy blasts, and has superhuman strength

Doctor Double X (originally called Doctor X and Double X) is a fictional character in the DC Comics universe. The character is a supervillain who has fought the Batman and Robin several times in Gotham City.

Publication history[edit]

Doctor Double X made his first appearance in the pages of Detective Comics #261 (November 1958), in a story titled "The Amazing Dr. Double X" by Bob Kane, writer Dave Wood and artist Sheldon Moldoff.[1]

Fictional character biography[edit]

Dr. Simon Ecks is a scientist who discovered that human auras could be enhanced to function outside of the body. When Ecks created an energy-duplicate of himself, the introverted scientist's unstable mind became dominated by the doppelgänger he named Double X. He fought with Batman and Robin. The resulting battle causes Simon Ecks to lose his memory of the experience. He is remanded to Arkham Asylum.[2]

Some years later, Simon Ecks regained his memory and developed another duplicator device that enabled him to escape from Arkham Asylum. Doctor Double X matched wits once again with Batman. This time, Batman was able to defeat him by building his own machine that generated an energy duplicate of himself.[3]

Doctor Double X later escaped from Arkham Asylum and faced off against Batman and Superman. This time, it took both Batman and Superman to overcome him.[4]

Doctor Double X once traded opponents with Flash foe Rainbow Raider after meeting a motivational therapist named Professor Andrea Wye. Both of them are defeated by Batman and Flash.[5]

Doctor Double X was later seen as a guest at the San Francisco sci-fi convention. He was sitting next to Beast Boy who learned that Doctor Double X was washed up and forgotten.[6]

Powers and abilities[edit]

Doctor Double X's energy-duplicate shares the consciousness of Simon Ecks, but can also act alone. The duplicate's powers of flight, energy blasts, and super strength have at times required Batman to seek help in defeating the villain. Double X requires regular infusions of electrical energy to sustain itself or it will lie dormant in Ecks' body.

In other media[edit]


  • Doctor Double X appears in the Batman: The Brave and the Bold episode "A Bat Divided" voiced by Ron Perlman. Doctor Double X tries to create a radioactive meltdown to increase his powers, but unknowingly creates Firestorm after he combines Ronnie Raymond and Jason Rusch. Unknown to everyone else and including him, he also split Batman into three parts. Doctor Double X later kidnaps Firestorm during a fight at the bar where the bad guys hang out to absorb his radioactive energy, but the three Batmen rescue Firestorm and battle and defeat Doctor Double X. In the episode "Joker: The Vile and the Villainous," Doctor Double X was seen at the same bar where the bad guys hang out at the time when Joker meets Weeper.

See also[edit]


  1. ^ "Detective Comics #261". Retrieved 2016-10-01. 
  2. ^ Detective Comics #261
  3. ^ Detective Comics #316
  4. ^ World's Finest #276
  5. ^ Brave and the Bold #194
  6. ^ Titans #17

External links[edit]