Title: John Connor
Content:  John Connor is a fictional character and the main protagonist of the Terminator franchise. Created by writer and 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 television series Terminator: The Sarah Connor Chronicles.
Title: John Connor
Content:  John Connor is portrayed by Nick Stahl in Terminator 3: Rise of the Machines (set 10 years after the second film). Now a young adult, John has been living off-the-grid after the second film's events, even as the original Judgment Day deadline in 1997 came to pass without incident. His mother eventually developed terminal leukemia and died. In the film, John crosses paths with Katherine "Kate" Brewster (Claire Danes), a former classmate from when he was living with his foster parents. He is attacked by a T-X Terminator (Kristanna Loken), which was sent from the future. Unlike predecessors, the T-X's objective was to terminate his future 
Title: John Connor
Content:  Dekker was cast after Lena Headey secured the role of Sarah Connor. Regarding the Terminator films, Dekker says "They are like my favorite films when I was younger. So it's very ironic that I'm getting to do this. And I know for the younger generation and for myself, John was equally important to me as Sarah was, and I know a lot of the people that I hear from really, really care about John". Dekker described his character as "a continuation of Eddie Furlong's character" but "he's in a darker, more mature place now". The show tells the story of the Connors in an alternate timeline from Terminator 3: Rise of the Machines. It branches off from the shared back story of Terminator 2, and according to consulting producer James Middleton, it was a new "version of T3."
Title: John Connor
Content:  John Connor appears in the video game Terminator: Resistance, which is set during the original future war depicted in the first two Terminator films. He is voiced by Eric Meyers and serves as the player character, Jacob Rivers's commanding officer within the Tech-Com Resistance group. John makes a physical appearance towards the endgame where he briefs and debriefs Jacob during the final assault on Skynet's base.
Title: List of Terminator: The Sarah Connor Chronicles characters
Content:  John Connor, portrayed by Thomas Dekker, is Sarah's son and the future leader of the Human Resistance. He is only 15 years old at the beginning of the show, turning sixteen in the season one finale. John De Vito as the young John in two episodes "Queen's Gambit" and "To the Lighthouse". As the series progresses, John struggles with his feelings for Cameron, who is a Terminator. Dekker was cast after Headey secured the role of Sarah Connor. Regarding the Terminator films, Dekker says "They are like my favorite films when I was younger. So it's very ironic that I'm getting to do this. And I know for the younger generation and for myself, John was equally important to me as Sarah was, and I know a lot of the people that I hear from really, really care about John". Dekker describes his character as "a continuation of Eddie Furlong's character" but "he's in a darker, more mature place now".
Title: John Connor
Content:  Thomas Dekker portrays John Connor in the parallel universe television series Terminator: The Sarah Connor Chronicles. He is only fifteen years old at the beginning of the show, turning sixteen in the season one finale, and seventeen throughout season two. As the series progresses, John struggles with his feelings for the Terminator Cameron. John De Vito plays a young John Connor in two episodes "Queen's Gambit" and "To the Lighthouse".
Title: John Connor
Content:  John Connor is played by Edward Furlong in his first appearance in Terminator 2: Judgment Day (a sequel to the first film). He is a 10-year-old juvenile delinquent living with foster parents (Jenette Goldstein and Xander Berkeley) while Sarah Connor (Hamilton) is at a hospital for the mentally insane. Though he is informed of his destiny of his future conflict with Skynet, young John is skeptical of his mother's claims of his fate as humanity's leader. While in an arcade with a friend, the Model 101 (Schwarzenegger), a reprogrammed android sent by John's future self; and the T-1000 (Robert Patrick) fight over him. This starts a chase sequence where the Model 101 and John try to lose the T-1000; this event validates John's mother's 
Title: Terminator (franchise)
Content:  Terminator: The Sarah Connor Chronicles follows Sarah (Lena Headey) and John Connor (Thomas Dekker) as they try to "live under the radar" after destroying Cyberdyne in Terminator 2. Summer Glau plays a Terminator named Cameron and Brian Austin Green plays Derek Reese, the brother of Kyle Reese, both sent back in time to protect the Connors and prevent another Judgment Day.
Title: John Connor
Content:  John Connor is portrayed by Christian Bale in Terminator Salvation (which is set in 2018). Now an older, battle-experienced Resistance soldier, he is married to Kate Brewster (Bryce Dallas Howard) who serves as a medic and is now pregnant with his child. Kate also assists command with her husband's Tech-Com unit. Since Judgment Day, John has been broadcasting radio messages to both the Resistance forces and surviving refugees in an effort to maintain morale and hope. The story also features new character Marcus Wright (Sam Worthington), and the teenage Kyle Reese (Anton Yelchin). John starts as one of the many foot soldiers who make up the Resistance movement based in California. Despite having extensive prior knowledge of the machines and Skynet's capabilities, John is largely dismissed by General Hugh Ashdown (Michael Ironside) 
Title: Terminator Genisys
Content:  On June 13, 2013, Schwarzenegger said that he would return for his fourth film as the Terminator. By early November, Garrett Hedlund was under consideration for the role of Kyle Reese, and Taylor wanted Tom Hardy to portray John Connor. That month the choice for Sarah Connor was narrowed to Emilia Clarke, Tatiana Maslany and Brie Larson, and Clarke was selected in December. Paramount had wanted Larson for the role, but Taylor preferred Emilia Clarke. In December 2013, Jason Clarke was in negotiations to play John Connor. Jason Clarke was David Ellison's first choice for the role. He was impressed by Clarke's performance in Megan Ellison's film Zero Dark Thirty (2012). In February 2014, the studio considered Jai Courtney and Boyd Holbrook as Reese, and later that month Courtney was confirmed for the role. J. K. Simmons began talks for the role of Detective O'Brien in March. According to late-March announcements, Dayo Okeniyi would play Danny Dyson and Lee Byung-hun, Michael Gladis, and Sandrine Holt joined the cast (Lee in a key role). Matt Smith was confirmed as a cast member in May, followed by Douglas Smith in June.

Question: who played john connor in the original terminator?
Answer: Michael Edwards.
Edward Furlong.