Action hero Bruce Willis, star of the Die Hard franchise, is to retire from acting after developing a cognitive illness, his family has announced.
A post on Instagram said Willis had aphasia — a language disorder that robs people of their ability to communicate.
"Bruce has been experiencing some health issues and has recently been diagnosed with aphasia, which is impacting his cognitive abilities," read the post.
Sixty-seven-year-old Bruce Willis is retiring from acting after he was diagnosed with an illness that is affects his cognitive abilities. Credit: Instagram/emmahemingwillis
Aphasia is typically caused by a stroke or head injury — though in more rare cases can come on gradually and progressively.
The condition affects a person's ability not just to speak and understand verbal communication but also their reading and writing.
The Los Angeles Times reported that questions about Willis's short-term memory have recently circulated.
The paper noted that he was not at the Oscars on Sunday when several other stars of Pulp Fiction, including Samuel L. Jackson, Uma Thurman and John Travolta, took to the stage.
Willis has been a fixture on the small and large screen since the 1980s, coming to public prominence in the TV series Moonlighting.
Samuel L Jackson and Bruce Willis in the 1995 film Die Hard: With a Vegeance. Credit: 20th Century Fox/Cinergi Pictures/AAP
Willis, who this month turned 67, provided the voice for the baby in the popular family flick Look Who's Talking.
Another of his best-known roles was as the dead person that child actor Haley Joel Osment could see in The Sixth Sense.
Willis won a Golden Globe and two Emmys during his career, but last weekend was the recipient of a far-less welcome honour == a specially devised category in the Razzies for Worst Performance by Bruce Willis in a 2021 Movie.
Co-stars of the television show Moonlighting, Bruce Willis and Cybill Shepherd, hold their awards on 12 March 1986 during the People's Choice Awards in Santa Monica. Source: AP / AAP
"This is a really challenging time for our family and we are so appreciative of your continued love, compassion and support," it adds.
"We are moving through this as a strong family unit, and wanted to bring his fans in because we know how much he means to you, as you do to him.
"As Bruce always says, 'Live it up' and together we plan to do just that."
Reaction was swift from fellow stars.
Jamie Lee Curtis wrote: "grace and guts! Love to you all", while Cindy Crawford posted an emoji of praying hands.
Actress and former co-star Elizabeth Perkins wrote: "Sending so much love to you all."
Seth Green said he is "grateful for every character he's given us".
Over the course of his career, the Hollywood veteran has appeared in films grossing more than A$3.3 billion (US$2.5 billion), according to online database IMDB. In 2006, he received a star on the Hollywood Walk of Fame, a Los Angeles landmark honouring legends of film, television and music.
Born on a U.S. military base in Germany in 1955, Willis was raised in New Jersey. After moving to New York to pursue anacting career, he appeared in off-Broadway productions and landed a few minor roles before getting his big break playing the wise-cracking private detective David Addison in Moonlighting.