History of character has not yet been written.
- This version of Mastermind of Crime, including all history and corresponding appearances, was erased from existence following the collapse of the original Multiverse in the 1985–86 Crisis on Infinite Earths limited series. Even though versions of the character may have since appeared, this information does not apply to those versions.
- 1 Appearances of Brian Downhill (Earth-Fox)
- 1 Images featuring Brian Downhill (Earth-Fox)
- 1 Quotations by or about Brian Downhill (Earth-Fox)
- Character Gallery: Brian Downhill (Earth-Fox)
|Blue Beetle Villain(s)|
This character, team or organization, is or was primarily an enemy of the Blue Beetle Legacy in any of its incarnations. Including Dan Garrett, Ted Kord and Jaime Reyes as well as any alternate universe equivalents.