Erin Moran, best known for her role as Joanie Cunningham on Happy Days, faced a tragic decline in her later years, battling addiction and homelessness before passing away from cancer at 56.

Ron Howard’s earnest Richie, Henry Winkler’s effortlessly cool Fonzie, Tom Bosley and Marion Ross as TV’s ultimate parental duo—one of the most fascinating aspects of Happy Days was the steady stream ...