Zina Feeley, who went by her maiden name, Bethune, was struck and killed February 12 while trying to help an injured animal in Griffith Park.
The accidents happened shortly after midnight in the 600 block of Forest Lawn Drive, near Zoo Drive.
Bethune was pronounced dead at the scene by paramedics, according to LAFD spokesman Matt Spence.
She was four days short of her 67th birthday.
Authorities said Bethune was driving west on Forest Lawn Drive when she stopped to help a possum in the road.
While walking toward the animal, she was hit by a car traveling east on Forest Lawn Drive.
The impact of the crash threw Bethune into the westbound lane, where she was hit a second time, LAPD Officer Cleon Joseph said.
She was dragged underneath the second car for more than 600 feet, according to Joseph. Both of those drivers stayed at the scene, police said.
Police are looking for a driver, who allegedly struck Feeley and left the scene shortly after the second impact. Witnesses told officers the hit-and-run motorist drove a white car.
Bethune was a ballet dancer in her youth, dancing with the New York City Ballet by age 14.
As a child, she also appeared on several daytime TV shows, including a stint on "The Guiding Light" from May 1956 to April 1958.
She starred as "The Girl" alongside Harvey Keitel's in Martin Scorsese's first feature film, "Who's That Knocking at My Door," which was released in 1967.
She was also featured on the CBS TV series The Nurses, and other series, including Kraft Television Theatre (with Martin Huston in the series finale), Route 66, The Judy Garland Show, Pantomime Quiz, Hollywood Squares, Young Dr. Malone, and Dr. Kildare.
Throughout her life, Bethune -- who suffered from scoliosis and hip dysplasia -- worked with disabled students.
She founded Dance Outreach, now known as Infinite Dreams, in 1982.
It enrolls about 1,000 disabled children in dance-related activities throughout Southern California.
Anyone with information is asked to call detectives at (213) 972-1825 or (877) LAPD-24-7.