These days in the UK, due to equality of the sexes, it is not politically correct (according to many people) to say that a woman who is a character in a film or play is 'an actress'. The norm now is to call both male and female participants 'actors'. Obviously this is clearly a step backwards in terms of accuracy and ease of distinguishing between a male and a female professional in this field!
"Margaret is an actor on Broadway."
イギリスでは最近、性別の平等のために、映画や演劇で演じる女性を'an actress'（女優）というのは、差別的であるとされています。今の基準は、女性も男性の役者も 'actors'と呼ばれています。明らかに、正確さとこの業界の男性と女性の区別をなくすという点からは後退しています。
"Margaret is an actor on Broadway."
マーガレットはブロードウェイの役者です。
An actor is a man who performs on stage/in a theater, in movies, or in television shows. An actress is a woman who performs on stage/in a theater, in movies, or in television shows. Nowadays, people say "actor" to refer to both male and female performers.
"Thespian" is a very formal and elegant way to say actor/actress. It is not frequently used in spoken conversation.
Sometimes people will refer to an actor who performs in a play as a "player".
The job where someone acts in movies, plays, and dramas is called an "Actor/Actress" or a "Performer".
And "Actor" is a man who acts in movies, TV shows, or plays, while an "Actress" is a woman who does the same thing.
A "Performer" is very similar to an actor, but he/she also does many live shows as well, which could include things such as singing and performing in shows such as circuses.
An actor (in general) is used for a male, and actress is used for a female. However, it is becoming more common (and often preferred) to use 'actor' for both men and women.
A person who plays characters in movies/dramas for a living is called an "actor/actress". The term "actor" is usually used for males but recently, it can be used for both genders. The term "actress" is used for performance art persons.
-My favorite actor is Will Smith. He was great in I Am a Legend
-My favorite actress is Mandy Moore because she is great in every movie she is in.
仕事として映画やドラマで役を演じる人のことは「actor」「actress」と言います。「actor」は普通男性を指しますが、最近は女性にも使われています。「actress」は「パフォーマンスアートの人（performance art persons）」について使われます。
My favorite actor is Will Smith. He was great in I Am a Legend.
（私のお気に入りの俳優はウィル・スミスです。彼は「I Am a Legend」で素晴らしかったです。）
My favorite actress is Mandy Moore because she is great in every movie she is in.
（私のお気に入りの女優はマンディ・ムーアです。彼女は出演映画全てで素晴らしい演技をしています。）
こんにちは。
「俳優」は英語で actor と言うことができます。
「女優」のことを actress と言うこともありますが、actor は男性でも女性でも使うことができる英語表現です。
例：
I want to be an actor when I grow up.
私は大きくなったら俳優になりたいです。
ぜひ参考にしてください。
an Actor: A male who performs acts
example sentence: Will Smith is my favorite actor of all time. Denzel Washington is an amazing actor.
an Actress: A female who performs acts
example sentence: Sandra Bullock is a great actress with beautiful eyes.
Movie star example sentence: I have always wanted to become a movie star ever since I was a teenager.
イギリス 
オーストラリア 
アメリカ合衆国 
ブルガリア 
南アフリカ 
日本 
