actor (n.) Look up actor at
late 14c., "an overseer, guardian, steward," from Latin actor "an agent or doer; a driver (of sheep, etc.)," in law, "accuser, plaintiff," also "theatrical player, orator," from past participle stem of agere "to do" (see act (n.)). In English from mid-15c. as "a doer, maker," also "a plaintiff at law." Sense of "one who performs in plays" is 1580s, originally applied to both men and women. Related: Actorish; actorly; actory.