Actor and musician Jon Paul Steuer, who rose to fame as a child star playing Alexander Rozhenko in Star Trek, has died aged 33.
The American, who appeared in the 1980s show Star Trek: Next Generation, was the first actor to play the character, who is the son of Worf and Ambassador K'Ehleyr.
The character went on to be played by Brian Bonsall, James Sloyan and Marc Worden.
Tributes from devoted fans of the show have since poured in for the performer who also forged a career as a musician and restaurateur.
According to the Willamette Week newspaper in Oregon, a cause of death has not yet been confirmed.
Following his death in Portland on New Year's Day, the official Star Trek Twitter account posted a tribute to the California-born star, who also appeared in American sitcom Grace Under Fire from 1993 until 1996.
"Rest in Peace, Jon Paul Steuer, the first actor to play Alexander in TNG. You will be deeply missed," the account posted.
Steuer's punk band P.R.O.B.L.E.M.S announced the singer's death in a Facebook post.
It wrote: "It is with heavy hearts and saddened minds that we announce the passing of our dear friend and singer Jonny Jewels, AKA Jon Paul Steuer.
"The addition of Jonny to our dysfunctional band family was one of the best choices that we have ever made, and he brought a much needed sense of fun and lightheartedness to everything we did.
"He was only with us for a little more than a year, but we managed to cram a lifetime of great experiences into his tenure as our singer."
The group added: "We've lost our singer, but far, far more than that we've lost a friend. Rest in peace, Jonny... we love you."
Dedicated Star Trek fans - known as Trekkies - also paid tribute online.
"My deepest sympathies to the colleagues and friends of Star Trek child actor Jon Paul Steuer. Rest easy, young Alexander Rozhenko," said one.
Another added: "RIP Jon Paul Steuer, Star Trek would have never been the save without you. Klingons for life."
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