Running from 1974 to 1984, "Happy Days" was the most popular sitcom during its heyday, entertaining families young and old with the adventures of the Cunninghams, an ordinary nuclear family in an ordinary American town in the 1950s. With a strong ensemble cast, it was a ratings monster for 11 seasons and remains one of the most rewatchable sitcoms ever made , while nearly every actor in the series can call their "Happy Days" character the most iconic of their respective careers. But no matter how happy-go-lucky their characters might have been, from Marion Cunningham to Potsie and Chachi — the actors themselves often faced tragedy at some point in their lives.

Whether it was addiction or disease, abuse or allegations against them, everyone from Ron Howard to Tom Bosley has been faced with

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