actor

n.

1. A theatrical performer

   player, performer, star, character, comedian, tragedian, member of the cast, thespian, leading man, leading woman, leading lady, lead, entertainer, artist, movie star, film star, television star, character actor, character actress, supporting actor, supporting actress, featured player, costar, superstar, principal, protagonist, deuteragonist, hero, heroine, villain, antihero, bad guy, juvenile, ingénue, soubrette, motion picture actor, stage actor, trouper, impersonator, mimic, mime, clown, comic, ventriloquist, pantomimist, monologist, performance artist, mummer, masker, heavy lead, heavy, romantic lead, matinee idol, theatrical performer, dramatic artist, artiste, headliner, understudy, stand-in, personator, histrio (Latin), extra, bit player, walk-on, supernumerary, spear carrier*, ham*, straight man*, straight person, barnstormer, gallery player, scene stealer, punchinello*, harlequin*, farceur (French), vaudevillian*, song and dance man, top banana*, second banana; see also actress, cast 2.

2. A person who does or participates in something

   participant, doer, performer; see doer, participant.