Scott Baio is an American actor best known for his television roles in the 1970s and 1980s. He rose to fame playing Chachi Arcola on the hit sitcom 'Happy Days' and its spin-off 'Joanie Loves Chachi.' Baio later starred in the popular sitcom 'Charles in Charge' as the title character, a live-in student managing a household. Throughout his career, he has appeared in numerous films and television shows, becoming a recognizable teen idol of his era.