Leslie Hamilton Freas, twin sister of Terminator star Linda Hamilton, has died 'unexpectedly' at the age of 63.
An obituary for Leslie was published by The Burlington County Times on Thursday, which confirmed her death on August 22.
Leslie passed away in Mount Laurel, New Jersey last Saturday, having spent her life working as a nurse and in hospice care.
She was remembered in her obituary as a "consummate caretaker, and devoted her life to helping her children and the lives of others."
Leslie had appeared opposite her sister in scenes shown in acclaimed sci-fi sequel Terminator 2: Judgement Day, which was released in 1991.
In the scenes, Leslie portrayed the evil T-1000 which took the form of Linda's character, action heroine Sarah Connor.
The two sisters also attended the film's premiere together and were seen embracing on the red carpet.
Linda and Leslie were born and raised in Salisbury, Maryland and were close throughout their lives.
In her obituary, Leslie was also described as an avid fisher, who "was not shy about out-fishing anyone who joined her."
Leslie is survived by her three children: Ashley, Adam, and Kendall.
She was also a grandmother to Luna Bo and Ollie.
Additionally, she and Linda share another sister, Laura Hamilton, a brother, Ford Hamilton, and a stepbrother, Jeffrey Payne.
The obituary also notes how Leslie "cherished the time spent with her family and friends".
Linda Hamilton has yet to comment publicly on her twin sister's passing.
The actress returned to the spotlight last year when she reprised her role as Sarah Connor in the Terminator franchise's most recent offering, Terminator: Dark Fate.
The film reunited her with old co-star Arnold Schwarzenegger, but despite a mostly positive critical reception, failed to find find financial success at the box office.
On whether she would return for a sequel, Hamilton told The Hollywood Reporter: "I would be quite happy to never return. So no, I am not hopeful, because I would really love to be done.
"But if there were something new that really spoke to me, I am a logical person, and I will always consider viable changes."
No plans for a sequel to Terminator: Dark Fate have been announced.
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