- 1
Someone who institutes a legal suit; a plaintiff or complainant.obsolete
- 2
Someone acting on behalf of someone else; a guardian.obsolete
- 3
Someone or something that takes part in some action; a doer, an agent.
- A man may be principal in an offence in two degrees. A principal, in the first degree, is he that is the actor, or absolute perpetrator of the crime; and, in the second degree, he who is present, aiding, and abetting the fact to be done.
- Never, my dear Bethel, did the most feverish dreams of fiction produce scenes more painful, or more terrific, than the real events to which I have been an actor, since the date of my last letter.
- 4
A person who acts a part in a theatrical play or (later) in film or television; a dramatic performer.
- Seems like everyone's an actor / Or they're an actor's best friend / I wonder what was wrong to begin with / That they should all have to pretend
- Exactly. Marijuana is something we just all gradually decided is okay, like Mark Wahlberg as a serious actor. “You know what? Sure, I’ve decided I’m fine with that.”
- 5
An advocate or proctor in civil courts or causes.Ancient-Romeobsolete
- 6
The subject performing the action of a verb.
- 7
The entity that performs a role (in use case analysis).
ant. undergoer