Miss Phyllis Morgan, as the hapless heroine dressed in the shabbiest of clothes, appears in the midst of a gay and giddy throng; she apostrophises all and sundry there, including the villain, and has a magnificent scene which always brings down the house, and nightly adds to her histrionic laurels.
Usage notes
In sense 1, hero, the masculine of heroine, is sometimes used, though it is still acceptable to use the feminine.
She is an American hero (or heroine).
Like feminine nouns formed with the suffix -ess, heroine refers only to females, whereas hero can refer to both males and females.
Who is your favorite hero? (answer can refer to either sex)
Who is your favorite heroine? (answer can refer only to females)