At its heart, Happy Days was a show about how friends and family are there for each other. Because of that, the show probably wouldn’t have worked as well as it did had there not been such a strong sense of camaraderie among the cast. Speaking at a fan event a few years ago, The Fonz — aka Henry Winkler — said they were each other’s biggest fans, and they enjoyed spending time together both on the set and off. (Click on the media bar below to hear Henry Winkler)