Leslie Hamilton Freas was Linda Hamilton's identical twin sister and appeared in a number of key scenes in the movie.
Leslie Hamilton Freas, the identical twin sister of Linda Hamilton, has passed away at the age of 63.
Although Leslie was not a professional actor, she had a key role in 'Terminator 2: Judgment Day' as the double of Linda Hamilton in several scenes. In the director's cut of the movie, Linda and Leslie Hamilton both appear on screen in the same shot during a dream sequence.
Later in the same cut, there's a scene involving the removal of the T-800's chip was done using a complicated layout involving a dummy of Arnold Schwarzenegger's head, Arnold Schwarzenegger and Leslie Hamilton standing behind a wall pretending it's a mirror, and Linda Hamilton and Edward Furlong.
The scene most people will recognise Leslie Hamilton Freas, which was included in all cuts of the movie, was towards the end where the T-1000 assumed her form in an attempt to trick John Connor in to returning to her.
Per an obituary in the Burlington County Times, Leslie Hamilton Freas worked as an ER nurse and, later, a hospice nurse and was described friends and family as "the consummate caretaker, and devoted her life to helping her children and the lives of others."