Answer:

EMCEE

AnswerCrossword Clue
EMCEEAct introducer
EMCEEAlex Trebek or Pat Sajak
EMCEEAlex Trebek, for one
EMCEEPayment
EMCEERoast host
EMCEETrebek or Sajak
EMCEEHost
EMCEEJoel Grey, in "Cabaret"
EMCEERun the show
EMCEELeno or Letterman
EMCEEJ. Cole, e.g.
EMCEEShow host
EMCEEToastmaster
EMCEEShow's coordinator
EMCEEAwards show host
EMCEEEvent host
EMCEEComedy club host
EMCEEPerson who handles the introductions
EMCEEVariety-show figure
EMCEEEd Sullivan, for one
EMCEEQuizmaster, e.g.
EMCEEClub host
EMCEEIntro maker
EMCEEHost at a roast
EMCEEShow opener
EMCEE"Let's hear it for ..." speaker
EMCEEGame show host
EMCEEMike holder
EMCEEToaster, often
EMCEEIntro maestro
EMCEERoast overseer
EMCEESeacrest or Sajak
EMCEESpeaker between other speakers, perhaps
EMCEEIntro giver
EMCEEDais VIP
EMCEECeremony facilitator
EMCEEOscar night figure
EMCEEToaster, at times
EMCEEFunction runner
EMCEEOscar night VIP