Henry Winkler Reveals What Happened to Chuck Cunningham From ‘Happy Days’

Henry Winkler, who played the Fonz on all 11 seasons of Happy Days, popped up on Twitter to cheekily address a mystery that has been haunting viewers for decades: what happened to older Cunningham brother Chuck?

From 1974 to 1984, Happy Days was one of the most popular shows on U.S. network television, and it was certainly a favorite of mine. I can still remember the original TV Guide Magazine ad for the program, word-for-word: “Those were the days of the 1950s … filled with innocence and the promise of even better days to come.” Well, maybe it should have said “better days for most” because something very odd and very unfortunate happened to the eldest member of the Cunningham clan. Simply put: Chuck Cunningham vanished without a trace.