O'Brien, also known as Ann Darrow O'Brien, has appeared in 42 comics since 1993. The most recent cataloged appearance dates to 2018. Team affiliations include Monkeyman and O'Brien. Most cataloged appearances come from Dark Horse Extra.
Collected Edition
Dark Horse Comics
4 issues
Image Comics
1 issue
IDW Publishing
2 issues
One-Shot
TwoMorrows Publishing
29 issues
HarperCollins
Sky-Dog Press
Hellboy Omnibus (2018)
May 09, 2018
Madman 20th Anniversary Monster! (2011)
Danger Unlimited (2009)
Mar 04, 2009
Liberty Comics: A CBLDF Benefit (2008)
Jul 23, 2008
Hellboy Library Edition (2008)
May 07, 2008
Dark Horse: Twenty Years (2006)
Jul 05, 2006
Modern Masters (2003)
Feb 15, 2006
Comic Book Encyclopedia (2004)
Oct 26, 2004
Savage Dragon: Worlds at War (2004)
More Fund Comics (2003)
Axwell Tiberius
Sven Olafsen
Emma Cavendish
Klaus Werner Von Krupt
Zane Townsend
Paul Gibney
Anung Un Rama
Sadu-Hem
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