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>>Actors have to have a license?
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>In the UK it used to be the case (not sure about still) that you had to get an "Equity Card" (like a union membership) in order to act. Trouble is/was it is/was a bit Catch-22 as you couldn't get your card without doing some acting. Don't know how anybody actrually got to be actors.

I have never been an actor. I can not say if a license is needed here.