When Lorraine Lewis was kidnapped by the forces of the Underworld Kingdom, Brad Hardy descended into the caverns to rescue her, discovering a vast subterranean world of forests, mountains and underwater cities inhabited by Snake Men, Rat Men and Grey People.
- This version of Brad Hardy, 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.
- 28 Appearances of Brad Hardy (Earth-Two)
- 1 Images featuring Brad Hardy (Earth-Two)
- Quotations by or about Brad Hardy (Earth-Two)
- Character Gallery: Brad Hardy (Earth-Two)