I usually recognize the actors' faces, but I often don't know their names.
I often can't match their faces with their names.
ご質問ありがとうございます。
① "I usually recognize the actors' faces,"＝「役者たちの顔は知っていることが多い」
"but I often don't know their names."＝「でも、彼らの名前を知らないことがよくある。」
② "I often can't match their faces with their names."＝「彼らの顔と名前が一致しないことが多い。」
ご参考に。
アメリカ合衆国 
日本 
