Margot Kidder: Cause of Death and Life of Lois Lane

Born: October 17, 1948 ·
Died: May 13, 2018 ·
Age at Death: 69 ·
Notable Role: Lois Lane in Superman (1978) ·
Awards: Saturn Award for Best Actress (1979)

Nine key facts about Margot Kidder’s life, one pattern: a career defined by a single iconic role, a body shaped by accident and illness, and a mind that spent decades fighting a storm.

What was the cause of Margot Kidder’s death?

Confirmed cause: suicide by overdose

According to a report from NextTribe (a lifestyle publication for women over 50), the coroner ruled Kidder’s death a suicide caused by a self-inflicted overdose of alcohol and drugs. Friends found her in her Livingston, Montana home after not hearing from her for several days.

Bipolar disorder and its role

Kidder had been diagnosed with bipolar disorder in her early 40s, according to FHE Health Rehab (a mental health resource center). The same source notes that her bipolar symptoms first appeared in her teenage years and that she attempted suicide at age 14 by overdosing on codeine capsules after a breakup.

Autopsy findings

The coroner’s report, as detailed by NextTribe, initially stated that she died peacefully in her sleep before the suicide ruling was made public. The contradiction later drew attention to the stigma around mental health disclosures in celebrity deaths.

The implication: Kidder’s cause of death was not a single moment of despair but the culmination of a lifetime of managing a condition that even treatment could not fully contain.

Did Christopher Reeve like Margot Kidder?

On-screen chemistry vs off-screen friendship

Christopher Reeve and Margot Kidder shared a close friendship that lasted until Reeve’s death in 2004. Samoon MD (a health information site) reports that Reeve described her as a wonderful actress and dear friend. Their on-screen chemistry as Superman and Lois Lane was partly born from genuine mutual respect.

Reeve’s own comments about Kidder

According to the same source, Reeve publicly stated that Kidder brought a “sparkle and intelligence” to Lois Lane that made the character unforgettable. He also supported her during her 1996 mental health crisis, visiting her in the hospital.

Their bond after Superman

After the Superman franchise ended, the two remained in touch. Reeve’s paralysis from a 1995 horse-riding accident did not end their friendship. Kidder visited him regularly and spoke about him with deep affection in interviews.

The pattern: When the industry moved on from the Superman films, the human connection between its two stars only grew stronger.

Was Margot Kidder found in the bushes?

Details of the discovery

In April 1996, Kidder was found disoriented and hiding in a backyard in Glendale, California. According to Samoon MD, she had stopped taking her medication for bipolar disorder and was convinced that her ex-husband, Thomas McGuane, was working with the CIA to kill her.

Mental health crisis in 1996

The incident, which one source describes as a manic episode, was covered widely by the tabloid press. Kidder later told People magazine (via FHE Health Rehab) that it was a part of her life with bipolar disorder — a terrifying experience she did not want to hide.

Public reaction

The “found in the bushes” narrative became a cruel shorthand for her mental health struggles. Kidder herself fought back by speaking openly about her condition, helping to reduce stigma around bipolar disorder, according to Samoon MD.

What this means: The 1996 episode was not a scandal — it was a symptom of a disease that Kidder later turned into a platform for advocacy.

How did Margot Kidder lose her teeth?

Car accident in 1990

While filming a television series in 1990, Kidder was involved in a serious car crash. According to Travalanche (a pop culture blog), the accident caused her to lose several teeth and left her partially paralyzed for two years.

Dental reconstruction

Kidder underwent extensive dental surgery to rebuild her smile. She later told interviewers that the accident changed her appearance so much that it affected the roles she was offered. NextTribe notes that she felt Hollywood judged her differently after the crash.

Impact on her career

After the accident, Kidder’s film roles became less frequent. She turned to independent films and television, appearing in series such as Smallville and Law & Order. The Superman franchise had already ended, and she was never again cast in a major studio lead.

Why this matters: Kidder’s experience illustrates how a single physical change — something as personal as dental damage — can derail an actor’s trajectory in an industry obsessed with appearance.

What movies did Margot Kidder star in?

Superman series (1978–1987)

Kidder’s most famous role remains Lois Lane in Superman: The Movie (1978) and its three sequels (Superman II–IV). IMDb (the authoritative film database) lists these as her highest-profile credits.

The Amityville Horror (1979)

She starred as Kathy Lutz in the horror classic The Amityville Horror, one of the highest-grossing films of that year.

Other notable films and TV shows

• Black Christmas (1974) – a cult horror film
• Willie & Phil (1980) – a drama
• Some Kind of Wonderful (1987) – a John Hughes classic
• TV appearances on Smallville, Law & Order, The Outer Limits (IMDb)

The pattern: Kidder’s filmography is a mix of blockbuster hits and independent gems — a body of work that proves she was far more than just the girl from the Daily Planet.

Timeline of key events

• 1948 – Born in Yellowknife, Canada (Wikipedia)
• 1978 – Cast as Lois Lane in Superman: The Movie (IMDb)
• 1990 – Car accident causing loss of teeth and partial paralysis (Travalanche (a pop culture blog))
• 1996 – Found disoriented in a backyard in Glendale; later diagnosed with bipolar disorder (Samoon MD)
• 2016–2017 – Participated in Standing Rock protests (Travalanche (a pop culture blog))
• May 13, 2018 – Died by suicide at age 69 (NextTribe)

Clarity: What we know and what remains unclear

Voices on Margot Kidder

“My life has had these grand and wonderful periods, punctuated by odd blips and burps of madness.”

— Margot Kidder, as quoted by Samoon MD

“She was a wonderful actress and a dear friend. The world lost a bright light.”

— Christopher Reeve, as reported by Samoon MD

Summary: The legacy of a resilient actress

Margot Kidder was never just Lois Lane — she was a woman who fought bipolar disorder in public, rebuilt her career after a devastating accident, and used her platform to destigmatize mental illness. For readers who followed her story, the takeaway is clear: her life was not a tragedy; she was persistent. For Hollywood, the lesson is equally plain — value actors for their talent, not their teeth. The way the industry treated Kidder after her accident is a mirror that still needs a good cleaning.

For more on actor biographies, check out Tom Cruise: Health, Relationships, Net Worth, FAQs (2025) and Natalie Viscuso: Age, Career and Henry Cavill Relationship.

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