Maximillian O'Leary (New Earth)

Although this character was originally introduced during DC's Earth-Two era of publication, their existence following the events of the 1985–86 limited series Crisis on Infinite Earths remains intact. However, some elements of the character's Pre-Crisis history may have been altered or removed for Post-Crisis New Earth continuity, and no longer apply.
- Maximillian O'Leary has not actually appeared in a post-Crisis New Earth story, but he was mentioned in Sargon's entry in Who's Who: The Definitive Directory of the DC Universe #20, which is a post-Crisis publication.
Maximilian and Sargon share the same birthday.^[1].

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