Premise: The Angel (Thomas Halloway, often shortened to Tom Halloway) is a fictional character, a superhero appearing in American comic books published by Marvel Comics. Created by artist Paul Gustavson and an unconfirmed writer during the Golden Age of Comic Books, the Angel first appeared in "Marvel Comics" #1 (Oct. 1939), the first publication of Marvel Comics' predecessor, Timely Comics.
Hypothesis: The Angel had a spin-off series of books called The Devil.