Erin Moran--Joanie On Happy Days

Erin Moran, who played Joanie, the bratty little sister of main character Richie Cunningham in the TV comedy Happy Days, has died. Happy Days was a coming of age series that ran from the mid 70s to the mid 80s based in the 1950s, a period viewers perceived as a simpler time.
  At first it was a story of High School aged Richie Cunningham and his buddies, good kids who hung around a drive in and got often got in trouble in their attempts to meet girls and have a good time.  Joanie was the little know it all who often threatened to tell on the older brother and his friends.  Arthur Fonzarelli was the dropout interloper who was distrusted by adults, but often kept Richie and his friends out of trouble.  Eventually the Fonz became the focal point of the series.
Moran, whose recent troubles had appeared in tabloids, sadly becomes another tragic TV child actor who died too soon.