Jamie Lee Curtis's sister Kelly's cause of death revealed as new details emerge about actress's final days 10%
By Brian Marks0% Sameer Suri0%
6/2/2026, 9:39:18 PM
BS Summary: This article contains 14 faulty reasoning types, including Anecdotal, Appeal to Emotion, and Appeal to Authority, with Negativity Bias as the most egregious example at 13.2% saturation with 122 hits. Analysis detected 749 faulty-reasoning hits from 922 analyzed words, generating a BS Score of 27.1% and a BS Rank of 10% (19,703 of 21,887 articles). This article is better (less manipulative) than 90.00% of the article peer group.
Jamie Lee Curtis's older sister Kelly Lee Curtis's cause of death was revealed on Monday, two days after her passing on May 30.
According to Us Weekly, the Blaine County coroner's office in Idaho determined that Kelly had died of natural causes.
The coroner also provided a glimpse into the actress's final days.
They reportedly noted that she had been in hospice care in the week leading up to her death at 2:30 a.m. on Saturday.
It was Kelly's sister Jamie, 67, who announced her death on social media later on Saturday, though she declined to state the cause.
According to the publication, Kelly's husband John Marsh was by her side once the coroner had arrived.
Later, Kelly and Marsh – her second husband – relocated to Bellevue, Idaho, where they established the documentary production company Liberty Films.
Kelly and her younger sister Jamie were the daughters of Some Like It Hot star Tony Curtis – who died in 2010 at 85 – and Psycho actress Janet Leigh, who died at 77 in 2004.
Both of the actresses followed their parents' footsteps into the acting profession, with Kelly starring in such films as the 1991 Italian horror picture The Devil's Daughter, directed by Dario Argento, whose previous work included the original Suspiria.
She also worked behind the scenes in showbiz, including as a production assistant on Jamie Lee's films Freaky Friday, Christmas with the Kranks and You Again.
Posting to Instagram on Saturday, Jamie Lee revealed that her sister died at home Saturday morning but refrained from disclosing the cause.
Hailing her sister's 'loving generosity' and 'fierce opinions,' the devastated Halloween star mourned the loss of her 'first friend' and 'lifelong' confidante.
The Daily Mail has contacted Curtis's representative for further comment.
'A warm aloha to my older sister, Kelly Lee Curtis.
She passed away this morning.
In her home.
In nature.
At peace,' wrote Jamie Lee.
'Kelly always signed off any message or fare thee well with a Hungarian blessing…Isten Veled, God is with you,' she added.
As such, Jamie Lee concluded her tribute by writing: 'Isten Veled to my sister of the sun and the moon, my Tai.
I'll see you on down the line.'
Kelly was born in Santa Monica in 1956, two years before her movie-star parents welcomed her little sister Jamie Lee into the world.
Behind the elegant facade presented by the Hollywood publicity shots of their supposed family idyll, the marriage between the girls' parents was dramatically disintegrating, ending in divorce when Kelly was only six.
Tony Curtis claimed in his memoirs that he finally moved out on an impulse after a particularly brutal fight at the end of which Janet, well-oiled with Scotch, swallowed a 'handful' of pills and he had to slap her back to get her to regurgitate them.
'Sad to say, Kelly and Jamie have always held it against me,' wrote Tony, adding that the girls' mother had what was then the customary full custody 'and I'm sure she filled their heads with all sorts of negative stories about me.'
Despite the sturm und drang of her upbringing, Kelly 'was always remarkably practical,' her father said, recalling that when she was four years old and saw a TV for the first time she sat down behind it and explained to her father that she 'was looking to see where the pictures and sounds were coming from.'
Having developed an early interest in the mechanics of showbiz, Kelly studied at the Lee Strasberg Theatre Institute, named for the chief of the Actors Studio.
She had made her movie debut at the age of two in her parents' movie The Vikings, and she acted sporadically in movies as an adult.
Kelly landed a cameo in the classic 1983 comedy Trading Places, starring Jamie Lee with Dan Aykroyd, Eddie Murphy and Don Ameche.
Her star turns included the 1987 adventure comedy Magic Sticks, which featured a young Samuel L.
Jackson in the bit part of a homeless man.
In 1991 she played perhaps her best-remembered part - an American schoolteacher in Germany who is targeted by a Satanic cult bent on impregnating her with the Antichrist, in the Italian horror movie The Devil's Daughter.
The picture was directed by Dario Argento, the Italian 'Master of Horror' whose films included Suspiria, Deep Red and The Bird with the Crystal Plumage, and whose daughter is the scandal-struck actress Asia Argento.
Kelly also guested on a variety of classic TV shows of the 1980s and 1990s, such as The Equalizer, Hunter, Star Trek: Deep Space Nine, The Sentinel and Judging Amy.
Her father reflected in his memoirs: 'Kelly wanted to be an actress, and she eventually had some chances to work in films, but it never made her truly happy.'
She acted in the theater as well and married playwright-cum-producer Scott Morfee in 1989, but the marriage fell apart, and her stage career never resulted in stardom.
In the 2000s, Kelly worked for her elder sister, serving as production assistant on three of her movies - the 2003 classic Freaky Friday costarring Lindsay Lohan, the 2004 picture Christmas with the Kranks led by Jamie Lee and Tim Allen and the 2010 romantic comedy You Again featuring Kristen Bell and Sigourney Weaver.
Tony Curtis, who died at 85 in 2010, had paid his own fond homage to her in his book: 'Kelly is a remarkably generous and compassionate person, sweet and giving.'
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