spokesman (n.)

• adviser
• agent
• announcer
• annunciator
• authority
• champion
• channel
• communicant
• communicator
• connection
• debater
• delegate
• demagogue
• deputy
• front
• go-between
• gossipmonger
• grapevine
• haranguer
• herald
• informant
• informer
• intercessor
• intermediary
• intermediate
• intermediator
• intermedium
• internuncio
• interviewee
• mediator
• medium
• middleman
• monitor
• mouth
• mouthpiece
• negotiant
• negotiator
• negotiatress
• negotiatrix
• newsmonger
• ombudsman
• panelist
• press
• prophet
• protagonist
• publisher
• rabble-rouser
• radio
• ranter
• rapporteur
• reporter
• representative
• source
• speaker
• speechifier
• speechmaker
• spokesperson
• spokeswoman
• spouter
• talker
• television
• teller
• tipster
• tout
• tub-thumper
• voice
• witness