AFTRA
DJ
MC
allegorist
anchor man
annotator
announcer
book reviewer
broadcaster
captious critic
carper
caviler
censor
censurer
cicerone
clarifier
cognoscente
commenter
connoisseur
critic
criticaster
criticizer
critickin
criticule
cryptanalyst
cryptographer
cryptologist
decoder
definer
demonstrator
demythologizer
diaskeuast
disk jockey
dragoman
editor
editorial writer
editorialist
emcee
emendator
emender
euhemerist
exegesist
exegete
exegetist
explainer
explicator
exponent
expositor
author
writer
activist
adviser
analyst
biographer
columnist
correspondent
diplomat
economist
historian
journalist
novelist
observer
pundit
researcher
reviewer
theologian
theorist