Erin Moran, Happy Day’s Joanie Cunningham, Dead At 56

The former Happy Days star was found unresponsive by first responders on Saturday.

CNN reports that Moran was found by authorities after receiving a 911 call Saturday afternoon. The cause of death is undetermined and an autopsy is planned.

Erin Moran played Joanie on Happy Days and one of its spin-offs, Joanie loves Chachi. Watch the video below to see highlights of Moran's time as Joanie Cunningham.