Matthew "Red" Ryan is an accomplished daredevil and a founding member of the Challengers of the Unknown. His teammates include Ace Morgan, June Robbins, Rocky Davis and Prof Haley. Having cheated death once, they exist on borrowed time and have pledged to live their lives to the fullest. Their headquarters is Challengers Mountain. Red Ryan was created by Jack Kirby, first appearing in Showcase #6. (1957)