commissary

a person who acts or does business for another will serve as commissary of religious education for the whole diocese Synonyms assignee, attorney, agent, delegate, deputy, envoy, factor, minister, procurator, proxy, rep, representativeRelated Words ambassador, diplomat, diplomatist, emissary, foreign minister, legate, plenipotentiary; alternate, backup, pinch hitter, relief, replacement, stand-in, sub, substitute, surrogate, understudy; informer, operative, spy; broker, distributor, manager; arbiter, arbitrator, comprador (or compradore), conciliator, go-between, intercessor, intermediary, interposer, liaison, mediator, middleman, peacemaker; mouthpiece, point man, point person, prophet, speaker, spokesman, spokesperson