The word actor refers to one who acts, while actress refers specifically to a female who acts. The Oxford English Dictionary states that originally “‘actor’ was used for both sexes”. The English word actress does not derive from the Latin actrix, probably not even by way of French actrice; according to the Oxford English Dictionary, actress was “probably formed independently” in English. As actress is a specifically feminine word, some feminists assert that the word is sexist. Gender-neutral usage of actor has re-emerged in modern English,[3] especially when referring to male and female performers collectively, but actress remains a commonly used word.
The gender-neutral term player was common in film in the early days of the Production Code, but is now generally deemed archaic. However, it remains in use in the theatre, often incorporated into the name of a theatre group or company (such as the East West Players).
http://en.wikipedia.org/wiki/Actor