Erin Moran likely died of cancer complications, officials say

Popular actress Erin Moran, a mainstay on TV from the late '60s to the mid-'80s and best known for her kid-sister role in the sitcom "Happy Days," has died. Authorities in Indiana found her body Saturday afternoon after getting a 911 for "an unresponsive female. She was 56.

(CNN) — Former “Happy Days” child star Erin Moran, 56, likely died from complications of Stage 4 cancer, the Harrison County (Indiana) Sheriff’s Department and medical examiner said Monday in a joint statement.

Moran was found dead in her home in New Salisbury on Saturday, authorities said.

“A subsequent autopsy revealed that Mrs. Moran likely succumbed to complications of Stage 4 cancer,” the statement said.

Standard toxicology tests were performed and the results are pending, the statement said, but no illegal narcotics were found at Moran’s residence.

Moran was probably best-known for her role as Joanie Cunningham, the younger sister of Richie Cunningham, who was played by Ron Howard, a child actor who is now a famed director.

“Such sad sad news … I’ll always choose to remember you on our show making scenes better, getting laughs and lighting up TV screens,” Howard wrote on Twitter.

The show aired from 1974 to 1984. It was set in 1950s Milwaukee and was a big hit with a catchy theme song and memorable characters such as The Fonz, played by Henry Winkler.

Moran played the same character in the early 1980s in “Joanie Loves Chachi,” a short-lived spinoff with her “Happy Days” co-star Scott Baio continuing his role as Chachi Arcola.

In 2012, Moran was one of the “Happy Days” actors who won money in a settlement with CBS over merchandising payments.

She had been the subject of tabloid reports that she and her husband were living in a trailer in Indiana since losing her home to foreclosure in California. While other cast members continued to act or direct, acting work dried up for Moran.