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 DOCTOR DOUBLE X (Simon Ecks)CHRONOLOGY 
Created by Dave Wood and Sheldon Moldoff

The Original Universe

CHRONOLOGY

Doctor Double X first appeared in Detective Comics #261 (November 1958): "The Amazing Dr. Double X!".

Below is the definitive list of appearances of Doctor Double X in chronological order. Flashback sequences or story entries will be followed by a [Flashback] note. Stories that for some reason are no longer part of current continuity will have a comment saying this in a note following the entry.

Follow the links for a complete index of the issue, including story and creator info as well as full character chronology and in some cases story synopses.

The chronology list can also be sorted according to Comic book title. Please note: If you want to go back to the chronological listing after having used the sorting tool you have to reload the page.

To go to the Doctor Double X (Simon Ecks) biography click here.


Doctor Double X Chronology

Click to list by alphabetically by title
Detective Comics #261 (November 1958): "The Amazing Dr. Double X"
Detective Comics #316 (June 1963): "Double Batman vs. Double X"
World's Finest Comics #276 (February 1982): "Double X Means Double Death"
Brave and the Bold #194 (January 1983): "Trade Heroes and Win"
Crisis on Infinite Earths #9 (December 1985): "War Zone"
Crisis on Infinite Earths #10 (January 1986): "Death at the Dawn of Time!"
Batman Vol. 1 #400 (October 1986): "Resurrection Night!"
Young Justice #50 (December 2002): "Fighting Maad Part Four: M.U.B.A.R."
Batman: Dark Detective #3 (Early August 2005): "The Dark Detective: Two Faces Have I"
Titans Vol. 2 #17 (November 2009): "The Only Constant"