T-3000

The T-3000 is a fictional character and the main antagonist of Terminator Genisys, the fifth installment in the Terminator series, portrayed by Jason Clarke. In the film, the T-3000 is an alternate timeline counterpart of Skynet's (portrayed by Matt Smith) nemesis John Connor (also portrayed by Clarke), created after Skynet infects a variant of Connor with nanotechnology and fractures the timeline. The T-3000 also serves as a foil personality to "Guardian" (a reprogrammed T-800 portrayed by Arnold Schwarzenegger), a protagonist who is somewhat similar to the T-3000 but also opposite in many ways, of their relationship dynamics with Sarah Connor (portrayed by Emilia Clarke) and Kyle Reese (portrayed by Jai Courtney).

The T-3000's sole mission is to protect and ensure the ultimate survival of Skynet, which seeks to eliminate the human race with its global machine network. The T-3000 describes itself as neither machine nor human; rather, it is a hybrid nanotechnological cyborg. Producer David Ellison explains that the title Terminator Genisys "[is] in reference to genesis, which is in reference to the singularity and the man-machine hybrid that John Connor ends up being." The T-3000 returns in the 2017 video game Terminator Genisys: Future War, a direct sequel to Genisys produced following the cancellation of the film's planned sequels in favor of another alternate timeline-set sequel, Terminator: Dark Fate (2019).