The star died from a self-inflicted drug and alcohol overdose
The death of Superman actress Margot Kidder has been ruled as suicide, after she passed away in May.
The actress, who portrayed Lois Lane opposite Christopher Reeve’s Superman, was found dead by a friend in her Montana home on May 13.
A statement released by Park county coroner Richard Wood confirmed that the star died from a self-inflicted drug and alcohol overdose, and no further details would be released.
Speaking after the ruling, the actress’ daughter Maggie McGuane said it was a “big relief” to finally reveal the truth.
Describing her mother’s extensive mental health battles, she said: “It’s important to be open and honest so there’s not a cloud of shame in dealing with this.”
“It’s a very unique sort of grief and pain,” McGuane told the Associated Press.
“Knowing how many families in this state go through this, I wish that I could reach out to each one of them.”
The actress had reportedly battled mental health issues for the majority of her life, and a 1990 car accident had left her in debt and confined to a wheelchair for almost two years.
Kidder starred in four Superman movies alongside Reeve’s titular hero between 1978 and 1987.
She later starred in a series of acclaimed small screen roles, winning a Daytime Emmy Award in 2015 for her role in RL Stine’s The Haunting Hour.
Paying tribute at the time of Kidder’s death, Star Wars icon Mark Hamill described her as one of the “sweetest” people that he had worked with.
Brandon Routh, who portrayed Superman in 2006’s Superman Returns, also hailed Kidder for openly discussing her own battles with mental health.