1. (n.) One who acts, or takes part in any affair; a doer.

2. (n.) A theatrical performer; a stage player.

3. (n.) An advocate or proctor in civil courts or causes.

4. (n.) One who institutes a suit; plaintiff or complainant.

Artful Dodger Casanova Don Juan Machiavel Machiavelli Machiavellian Roscius actress affecter agent antagonist antihero architect author bad guy bamboozler barnstormer befuddler beguiler bit bit part cast character character actor character man character woman charmer child actor counterfeiter creator cue deceiver deluder diseur diseuse dissembler dissimulator dodger doer double-dealer dramatizer duper enchanter entrancer executant executor executrix fabricator fake faker fat part feeder foil fooler forger fraud gay deceiver heavy hero heroine histrio histrion hoaxer hollow man hypnotizer impersonator ingenue jilt jilter joker jokester juvenile kidder lead lead role leading lady leading man leading woman leg-puller lines mainstay maker man of straw mannerist matinee idol medium mesmerizer mime mimer mimic misleader monologist mover mummer operant operative operator pantomime pantomimist paper tiger part partaker participator party performer perpetrator person personage phony piece plagiarist plagiarizer playactor player practical joker practitioner pretender prime mover producer protagonist protean actor ragger reciter role role-player seducer sharer side soubrette spoofer stage performer stage player stooge straight man straight part straw man stroller strolling player subject supporter supporting character supporting role sustainer tease teaser theatrical thespian title role trouper upholder utility man villain walk-on walking part worker