Real Name: Martin Jefferson
Created by: Freddie Williams II and Matthew “Matt” Sturges
1st appearance: JSA All Stars #17, 2011
Team Affiliations: Justice Society of America/ Justice Guild of Earth
Legal Status: US Citizen
Height: 6’2 Weight: Unknown
Eyes: Brown Hair: None
Relatives: Prince (Son/status unknown), Judomaster/Sonia Sato (daughter in law)
Skills and abilities: Unknown
Powers:Tachyon based powers, unclear in actual utilization but supposedly immense as he killed Darkseid before his death. Force fields as a subset of his tachyon powers seems evident. Ability to survive in the vacuum of space.
In the main universe of E-0 Dr. Muriel Hass had a son who believed he was a superhero named Prince and he had the abilities to support it, he dreamed of another world that could’ve been. Muriel then attempted to create this universe experimenting with tachyon beams and sending one back in time striking Martin Jefferson, transforming him into the hero known as Regal. In this alternate reality the German invasion of Poland was stopped just in its second day effectively averting World War II from ever occurring. His greatest villain was ironically the Muriel Hass of his universe known as Doctor Hate who also became the mother of his child Prince whom he raised away from his mothers influence. The two alongside the heroes of their Earth helped to build the Justice Guild of Earth an international superhero society as well as to apparently stop the Crisis on Infinite Earths from claiming their universe. Regal ultimately met his demise in battle with Darkseid with both dying and Prince following in his father’s footsteps. In the main universe after Muriel’s son discovered he wasn’t the Prince of this other world he went on a rampage leading to his own death. Afterwards a vision is shown of the other universe’s Prince and Judomaster showing this universe still exists out in the multiverse.