Spokesman(n.) One who speaks for another.
Thesaurus Entries
adviser, agent, announcer, annunciator, authority, champion, channel, communicant, communicator, connection, debater, declaimer, delegate, demagogue, deputy, enlightener, expert witness, front, front man, go-between, gossipmonger, grapevine, haranguer, herald, informant, information center, information medium, informer, interagent, interceder, intercessor, intermediary, intermediate, intermediate agent, intermediator, intermedium, internuncio, intervener, interventionist, interventor, interviewee, jawsmith, mediator, medium, middleman, monitor, mouth, mouthpiece, negotiant, negotiator, negotiatress, negotiatrix, newsmonger, notifier, official spokesman, ombudsman, panelist, press, prolocutor, prolocutress, prolocutrix, prophet, protagonist, public relations officer, public speaker, publisher, rabble-rouser, radio, ranter, rapporteur, reporter, representative, source, speaker, speecher, speechifier, speechmaker, spieler, spokesperson, spokeswoman, spouter, talker, television, teller, tipster, tout, tub-thumper, voice, witness