Rhywun sydd yn cymryd rhan mewn drama neu ffilm yw actor neu actores (y ffurf fenywaidd), fel arfer.
![Thumb](http://upload.wikimedia.org/wikipedia/commons/thumb/b/b5/ActorsOffSetLaughing.jpg/320px-ActorsOffSetLaughing.jpg)
Ymhlith yr actorion o Gymru, sy'n enwog drwy'r byd, y mae: Richard Burton, Anthony Hopkins, Catherine Zeta-Jones, Stanley Baker, Siân Phillips, Rhys Ifans, Christian Bale a Ioan Gruffudd.
Mae'r rheiny nad ydynt o dras Gymreig yn cynnwys: Greta Garbo, Samuel L. Jackson, Katharine Hepburn, Dustin Hoffman, Bette Davis, Jack Nicholson, Meryl Streep a Errol Flynn.
Gweler hefyd
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