Henry Winkler, born October 30, 1945, is an American actor, director, producer and author. Winkler is best known for his role as Fonzie in the 1970s American sitcom Happy Days. "The Fonz" started out as a minor character at the show's beginning, but had achieved top billing by the time the show ended.
Since 2003, Winkler has collaborated with Lin Oliver on a series of children's books about a 4th grade boy, Hank Zipzer, who is dyslexic. Winkler also has the learning disability, which was not diagnosed until he was 31. Winkler has published 17 books about his hero Zipzer, the "world's greatest underachiever".