Cyborg with human heart who helps John Connor in Salvation.
Serena recruits Marcus for post-execution medical research.
Serena convinces death row inmate Marcus Wright to sign over his body for medical research following his execution.
Their cooperation develops from suspicion into a decisive alliance.
John and Marcus make a bargain: Marcus will help John rescue Kyle and the other prisoners if John lets him live.
They protect each other and form a strong field alliance.
Marcus rescues Blair after her aircraft is shot down, and Blair later helps Marcus escape when John orders his execution.
Marcus's bargain with John directly serves Kyle's rescue.
Marcus agrees to enter Skynet's headquarters to help John rescue Kyle and the other prisoners.
Marcus protects Star indirectly during the final confrontation.
Marcus helps create the conditions for Kyle and Star to escape while he fights the T-800.
Explore the full interactive character relationship map of Terminator Salvation
Related entry on Wikidata (Q22675639), public domain (CC0).