SANTA MONICA, Calif. - Iconic actress June Lockhart, best known for her roles in "Lassie" and "Lost in Space" has passed away. She was 100.

A family spokesperson said Lockhart died of natural causes at her Santa Monica home with her daughter, June Elizabeth, and granddaughter, Christianna, by her side.

The backstory:

Lockhart was born in New York on June 25, 1925.

She made her acting debut at just 8 years old at the Metropolitan Opera House. By age 13, she transitioned from the stage to the screen and was cast in MGM’s 1938 version of "A Christmas Carol."

Her parents, Gene and Kathleen Lockhart, starred in the film.

Gene Lockhart was an Oscar-nominated actor with over 300 film credits. In the 1930s, he became a founding member of the Screen Actors Guild.

She then was cast in "All

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