Margot Kidder, born Margaret Ruth Kidder on October 17, 1948, in Yellowknife, Northwest Territories, Canada, was a Canadian-American actress best known for her portrayal of Lois Lane in the Superman film series alongside Christopher Reeve. Her natural charm, intelligence, and wit made her an iconic figure in superhero cinema and beyond.

Kidder's breakout role came in Superman: The Movie (1978), where her portrayal of the fearless and determined journalist Lois Lane set the standard for the character in future adaptations. She reprised the role in Superman II (1980), Superman III (1983), and Superman IV: The Quest for Peace (1987).

Beyond Superman, Kidder showcased her talent in a variety of genres. She starred in the horror classic Black Christmas (1974), the psychological thriller Sisters (1972), and the supernatural horror The Amityville Horror (1979), solidifying her status as a versatile actress.

Later in life, Kidder became an advocate for mental health awareness after publicly discussing her struggles with bipolar disorder. She was also an outspoken activist for political and environmental causes.

Margot Kidder passed away on May 13, 2018, but her legacy endures through her groundbreaking performances, particularly as the definitive Lois Lane for a generation of fans.