Does Linda Hamilton have a twin sister who appeared in T2?
Yes, Linda’s sister’s name is Leslie Hamilton Gearren; she is a nurse in New Jersey. She was in the scene at the end where the T-1000 took the form of John Connor’s mother. Linda actually played the T-1000 version of herself and her sister played Sarah Connor coming up behind the T-1000. Linda’s sister also appeared in the scene in which Sarah replaces the Terminator’s chip and sees herself in a mirror (this scene is restored in the Special Edition). Linda Hamilton played Sarah on the playground during her dream sequence (in fact, she is holding her real-life son). (The guard in the mental institute also has a real-life twin brother, who actually played the T-1000 coming up behind him at the coffee machine. These twin brothers were also in Good Morning Vietnam and Gremlins 2: The New Batch.