commentator
noun
[ ˈkɒmənteɪtə ]
• a person who comments on events or on a text.
• "commentators noted that the demonstration was part of a wider strategy"
Similar:
critic,
analyst,
pundit,
commenter,
monitor,
observer,
blogger,
judge,
evaluator,
interpreter,
exponent,
expounder,
writer,
author,
speaker,
forumite,
scholiast,
the commentariat,