Actresses June Lockhart (L) and Nichelle Nichol wave during the opening of Endeavour: The California Story at the California Science Center in Los Angeles in 2012. Lockhart died at age 100 on Thursday ...

LOS ANGELES (AP) — June Lockhart, who became a mother figure for a generation of television viewers whether at home in “Lassie” or up in the stratosphere in “Lost in Space,” has died. She was 100.