Maximillian O'Leary was the late-1940s sidekick of Sargon the Sorcerer.
- 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.
- Appearances of Maximillian O'Leary (New Earth)
- Images featuring Maximillian O'Leary (New Earth)
- Quotations by or about Maximillian O'Leary (New Earth)
- Character Gallery: Maximillian O'Leary (New Earth)