You know Joanie loves him, but what was the actor behind Chachi Arcola doing the rest of the past 30 years? Find out with this filmography.

Read a bio of the 70s teen idol who played Fonzie's cousin, Chachi, on Happy Days, then go to the where-are-they-now section for updated news.

See pictures from early TV appearances and a filmography for this charter member of a Hall of Fame dedicated to young actors who became successful adults.