If you're a fan of teen TV, you've likely already seen Ross Butler's face. The 26-year-old actor has had arcs on Disney Channel's K.C. Undercover, ABC Family's Chasing Life, and, most recently, MTV's Teen Wolf. His latest role is a comic-book legend — but not of the superhero variety. Butler appears as an updated version of Reggie Mantle on Riverdale, The CW's neo-noir take on the world of Archie Comics.