theatrical (n.)
- actor
 - actress
 - antagonist
 - ballet
 - barnstormer
 - camp
 - character
 - dramatics
 - dramaturgy
 - fake
 - feeder
 - film
 - foil
 - grandstand
 - ham
 - hammy
 - heavy
 - histrion
 - histrionics
 - hysteric
 - ingenue
 - juvenile
 - legitimate
 - mime
 - mimer
 - mimic
 - monologist
 - movie
 - mummer
 - overacting
 - pantomime
 - pantomimist
 - playactor
 - player
 - reciter
 - repertory
 - sensationalism
 - soubrette
 - spectacular
 - stage
 - staginess
 - stooge
 - stroller
 - theatricality
 - thespian
 - trouper
 - vaudevillian
 - villain
 
theatrical (adj.)
- affected
 - artificial
 - balletic
 - camp
 - campy
 - cinematic
 - dramatic
 - dramaturgic
 - emotive
 - exaggerated
 - extravagant
 - fake
 - false
 - forced
 - ham
 - hammy
 - heavy
 - histrionic
 - hysteric
 - insincere
 - juvenile
 - la-di-da
 - legitimate
 - mannered
 - melodramatic
 - mimic
 - nonrational
 - operatic
 - ostentatious
 - overdone
 - overemotional
 - overwrought
 - pretentious
 - scenic
 - sensational
 - sensationalistic
 - showy
 - spectacular
 - stage
 - stagy
 - stellar
 - theatric
 - thespian
 - unnatural
 - unreasoning