Synonyms for Spokesperson:

n.

confederate, charter member, substitute, core, commissioner, associate, baby, mouth, spokesman, speaker, spokeswoman, arriviste, branch, academician, alumnus, mouthpiece. person (noun)
voice, interpreter, representative.
person who communicates for another (noun)
substitute, representative, mouthpiece, mouth, speaker.
spokesperson (noun)
voice, interpreter, representative.
talker (noun)
speaker.

Other synonyms:

spokeswoman. mouthpiece. spokesman, speaker. mouth. Other relevant words:
substitute, spokeswoman, mouth, branch, mouthpiece, commissioner, speaker, spokesman.