Terminator 2: Judgment Day is a 1991 American science fiction action film directed by James Cameron, who co-wrote the script with William Wisher. Starring Arnold Schwarzenegger, Linda Hamilton, Robert Patrick, and Edward Furlong, it is the sequel to The Terminator (1984) and is the second installment in the Terminator franchise. In the film, the malevolent artificial intelligence Skynet sends a Terminator—a highly advanced killing machine—back in time to 1995 to kill the future leader of the human resistance John Connor, when he is a child. The resistance sends back a less advanced, reprogrammed Terminator to protect Connor and ensure the future of humanity.

John Connor is a fictional character in the Terminator franchise. Created by writer/director James Cameron, the character is first referred to in the 1984 film The Terminator and first appears in its 1991 sequel Terminator 2: Judgment Day (T2). In the character's first appearance, John is portrayed by Edward Furlong as a child, and briefly by Michael Edwards as an adult in a small role. Other actors have portrayed the character in subsequent films, including Nick Stahl, Christian Bale, and Jason Clarke. In addition, Thomas Dekker portrayed John Connor in the two-season television series Terminator: The Sarah Connor Chronicles.