Nighthawk is the name of several fictional characters appearing in American comic books published by Marvel Comics. There have been seven versions of the character: two supervillains-turned-superheroes from the mainstream Marvel Universe continuity (Earth-616), Kyle Richmond (who belonged to the Squadron Sinister) and Tilda Johnson (the former Deadly Nightshade); two S.H.I.E.L.D. agents, Joaquin Pennyworth and Jackson F. "Jack" Norriss; and five from alternate universes, who belonged to various incarnations of the Squadron Supreme, including the Kyle and Neal Richmond of Earth-712, and an African-American version of Kyle Richmond from Earth-31916 who primarily kills white supremacists and mentors Tilda upon travelling to Earth-616; after his death, a simulacrum of him is created by Mephisto and programmed by the Power Elite to serve as a member of the Squadron Supreme of America, under the command of Phil Coulson.
Kyle Richmond of Earth-616, was the one who helped She-Hulk to found the team: Fearsome Four.