Martin Stein
Martin Stein is a fictional character appearing in American comic books published by DC Comics. He is commonly associated with, and sometimes is, the superhero Firestorm.Stein has made several appearances in DC-related media, such as the Arrowverse television series ''The Flash'' and ''Legends of Tomorrow'', in which he is portrayed by Victor Garber, making his final appeared in the multiple-series crossover event "Crisis on Earth-X" (along with ''Supergirl'' and ''Arrow''). Provided by Wikipedia