Rachel Herbert (born 1935) is a British actress whose television appearances include roles in Deadline Midnight (1960), Thursday Theatre (1964), The Villains (1964), No Hiding Place (1963–65), Danger Man (1965),^[1] The Power Game (1965–66), and Thirty-Minute Theatre (1967). She appeared in The Prisoner episode entitled "Free for All" (1967) as Number Fifty-Eight but ultimately revealed to be the new Number Two.

Other roles include ITV Play of the Week (1965–67), Man in a Suitcase (1968), Spindoe (1968), The Champions (1969), Callan (1970), Special Branch (1970), ITV Saturday Night Theatre (1971); episode 1 of Lord Peter Wimsey 's Clouds of Witness, Murder Must Advertise (1973), The Pallisers (1974), The Venturers (1975), Softly, Softly: Taskforce (1974–75), Shadows (1978), The Professionals (1978), Prince Regent (1979), The Enigma Files (1980), Minder (1980), Crown Court (1973–84), Screen Two (1986), and The House of Eliott (1994).^[2]

Herbert's film appearances include Robbery (1967), The Raging Moon (1971) and The Doctor and the Devils (1985).^[2]