Marvel Database

Gregory O'Sullivan (Earth-616)

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History of character is unknown.


  • While fused with one of Mephisto's demons, Gregory could create warps to other dimensions and realities. He also possessed minor mystical abilities.


Sword, Railgun

  • Briefly fused with a demon.

Discover and Discuss


  1. Official Handbook of the Marvel Universe A-Z hardcover Vol. 8, Mys-Tech entry

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