John Mason

John Mason is the main protagonist in Demon Deviants. Formerly an author, Mason went to become the second leader of the Demon Resistance after the creatures took over Earth. He is the father of Cliff, Derek, Cole and Addison Mason, four of the show's other main protagonists. Aside from his father figure, he is also a friend and ally of Scott Wright and Dr. Lilly Harper, both members of the resistance. He has a wife named Gwen who he thought was killed during the apocalypse, but her fate is unknown.

He is portrayed by Ethan Hawke. Hawke's portrayal of the character has been given high praise by multiple resources.