By Samantha Highfill
Updated January 02, 2015 at 07:20 PM EST
CBS/Getty Images

Donna Douglas, best known for playing Elly May Clampett on The Beverly Hillbillies, died Friday morning, according to NBC 12. She was 81.

Douglas, who most recently made her way into the press for her 2011 lawsuit against Mattel Inc. claiming they used her likeness for a Barbie doll without authorization, was also known for starring alongside Elvis Presley in 1966’s Frankie and Johnny. She appeared on a number of television shows, from Mister Ed to 77 Sunset Strip.

Douglas’ cause of death has not yet been released.