Margot Kidder, who with a raspy voice and snappy delivery brought Lois Lane to life in the hit 1978 film “Superman” and three sequels, died on Sunday at her home in Livingston, Mont. She was 69.

Her death was confirmed by Camilla Fluxman Pines, her manager, who did not specify a cause.

Ms. Kidder appeared in more than 130 films and television shows beginning in the late 1960s, and by the mid-’70s, when she took a break from acting after her daughter was born, she was already working steadily. But “Superman,” her return to moviemaking, rocketed her to a new level of fame.