Michael Louis Chernus (born August 8, 1977) is an American actor. He has acted on film, television, and the stage. He is perhaps best known for his role as Cal Chapman on the Netflix original comedy-drama series Orange Is the New Black (2013–2019). Chernus played Phineas Mason / Tinkerer in the Marvel Cinematic Universe film Spider-Man: Homecoming, which was released on July 7, 2017.