Alexander Coltrane

Major Rachel Dalton (formerly Captain) is a military intelligence officer. She is introduced in Vengeance as "Rachel McMillan", junior attaché to British Diplomat Patrick Burton. She is later revealed to be undercover to intercept four nuclear triggers, which end up in the wrong hands. Whitehall later appoint her to command Section 20, replacing Grant, to hunt the nuclear triggers, which are later in the hands of philanthropist Conrad Knox. Due to Knox's influence with the South African government, Dalton has Section 20 go dark in order to stop him. By the end, she gets the co-operation with the South Africans again, and they work together to stop Knox. When the team succeed, Knox shoots Dalton, but she survives.