Jonathan Payton Dorrance was a famous World War II era frogman. His son Dane Dorrance, idolizing his father's career, took up diving and became one of the founding members of the Sea Devils. John Dorrance, later assumed the identity of Captain X.

  • This version of Jonathan Payton Dorrance (Earth-One), 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.