Former stage, screen and television actress June Lockhart died at age 100 on Thursday at her Santa Monica, Calif., home, her family announced on Saturday.

Actress June Lockhart, best know for her TV roles in "Lost in Space" and "Lassie", poses for a photograph in the newsroom at NASA's Jet Propulsion Lab in Pasadena, Calfiornia August 5, 2012. REUTERS/Fred Prouser/File Photo (Reuters) -June Lockhart,

June Lockhart, who became famous in the 1950s and '60s for her starring roles in 'Lassie' and 'Lost in Space,' has died at 100.

The actor, whose career spanned films, TV dramas and soap operas, was beloved for her roles in "Lassie" and "Lost In Space." She died on Thursday of natural causes, a family friend said.

Lassie” and “Lost in Space” star June Lockhart died of natural causes in her Southern California home this week, her family said Saturday.

June Lockhart, iconic Lost in Space and Lassie star, died at age 100 after remarkable career spanning TV, film and NASA advocacy.

June Lockhart, the actress known for Lassie, Lost in Space and Meet Me in St. Louis, has died. She was 100. The Tony-winning actress from the Golden Age of Hollywood died Thursday night of natural causes at her Santa Monica home with daughter June Elizabeth and granddaughter Christianna by her side.