Answer: negotiator

AnswerCrossword Clue
NEGOTIATORKevin Spacey role, with "The"
NEGOTIATORHostage film hero
NEGOTIATORHarriman's job in Iran.
NEGOTIATORMaj. Gen. Howard M. Turner, for instance.
NEGOTIATORUnion intermediary.
negotiatorone who negotiates
negotiatorA person who conducts negotiations