Desdemona's first interpreter was most certainly a boy actor with a singing voice.
One of the boy actors played the part of Juliet.
Some of the boy actors were very good, and went on to play men's parts when they were older.
Many boy actors filled female roles for a few years, then switched to male roles.
His case is interesting for the light it throws on the conditions of boy actors in this era.
It is an elaborate description that could never possibly be portrayed by a young boy actor.
More conventionally female roles went to other boy actors.
Male actors - or at least boy actors - had played the women's roles since the early 16th century.
Because of cultural misunderstandings there has been concern about the safety of him and the other two main boy actors.
Not eternal boy actors who happened to have male genitals...