D defs.my
Entry 3 senses Webster, 1913

Actor

/ăk'-tẽr/ · Ac·tor · IPA /ˈæk.tɚ/
01 n. One who acts, or takes part in any affair; a doer.
  1. 1.
    One who acts, or takes part in any affair; a doer.
  2. 2.
    A theatrical performer; a stageplayer.
    “After a well graced actor leaves the stage.” Shak.
  3. 3.
    An advocate or proctor in civil courts or causes.(Law)