Miles Dyson

Miles Dyson is an expert in cybernetics at Cyberdyne Systems Corporation as the Director of Special Projects. He has a wife named Tarissa and a son named Danny. Dyson is creating a microprocessor inspired by two pieces of highly advanced technology recovered from a Terminator in the first film. Dyson is the man most directly responsible for Skynet's creation, which would lead to Judgment Day. One night at his home, Dyson is suddenly attacked by Sarah Connor, who believed that Judgment Day could be averted by killing Dyson, thereby stopping development of the microprocessor. When Sarah realizes that Dyson is effectively innocent and cannot bring herself to kill him in front of his family, Dyson is saved by Sarah's son, John, and the Model 101 Terminator. To convince Dyson that it is a Terminator, the machine removes skin to reveal its mechanic arm, identical to another arm held at Cyberdyne's laboratory. The group explain to Dyson the nature of Skynet and what his work would lead to. Dyson initially states that he will quit working at Cyberdyne and destroy all of his research, only for the Model 101 to explain that as long as the technology remains at Cyberdyne, Judgment Day remains inevitable. Dyson agrees to accompany Sarah, John and the Terminator to Cyberdyne to destroy his research. After unwillingly forcing their way into Cyberdyne at gunpoint, Dyson assists John to gather the technology from his laboratory. Dyson also begins preparing to decimate the lab with a bomb. Just as the bomb is ready for detonation, SWAT team officers arrive and open fire, severely wounding Dyson. Dyson holds onto the trigger and signals for the Connors, the Terminator, and the SWAT team to leave. Dyson succumbs to his injuries and detonates the bomb, killing him and destroying the building.

Dyson returns in Terminator Genisys, which takes place in an alternate timeline where Judgment Day was delayed to the year 2017. In this timeline, Dyson is Cyberdyne's CEO, and though he did not create Skynet directly, he is funding a project called "Genisys", created by his son, Danny and John Connor (now psychopathic and turned into a cyborg designated the T-3000 Terminator), both replacing him as Skynet's creators.[2]

Miles's wife, son and home appear in the pilot episode of this series, and although he appears in only the form of a family photograph, his part in Terminator 2 is mentioned. It is revealed that the FBI believes (incorrectly) that Sarah is responsible for his death, which explains his wife Tarissa's hostility towards her after they meet again in 1999, though they manage to convince her that she is innocent of the crime. In episode 3, his grave is visited by his wife and Sarah. Sarah asks her if she knew anything about some men involved in the creation of Skynet. Tarissa mentions one man who created a form of AI called "The Turk," a computer system capable of playing chess. In the photographs, Dyson is portrayed by Phil Morris.

In the T2 series of novels by S.M. Stirling, set after Judgment Day, Miles's brother, FBI agent Jordan Dyson, takes on the task of investigating Sarah Connor's activities, initially hunting her and John in the belief that they are responsible for his brother's death; even after Miles's wife reveals that the leader of the SWAT team that killed Miles has admitted his role in events—he was dying of cancer and wanted to apologize for his mistake—Jordan continues his vendetta on the grounds that Miles would never have been in Cyberdyne if it were not for Sarah. When he finally learns the truth about the Terminators, he is initially skeptical, but later comes to believe the Connors' tales, helping them battle the latest Terminator incursion into the past.