- a person who acts in stage plays, motion pictures, television broadcasts, etc.
- a person who does something; participant.
Origin of actor
- a person who acts in a play, film, broadcast, etc
- informal a person who puts on a false manner in order to deceive others (often in the phrase bad actor)
Word Origin and History for non-actor
late 14c., "an overseer, guardian, steward," from Latin actor "an agent or doer," also "theatrical player," from past participle stem of agere (see act (n.)). Mid-15c. as "a doer, maker," also "a plaintiff." Sense of "one who performs in plays" is 1580s, originally applied to both men and women.