Note 322 — SCENE VIII.
Reading edition
Charmers are enchanters or magicians. So in "Othello," act iii. sc. 4—
"That handkerchief Did an Egyptian to my mother give; She was a charmer, and could almost read The thoughts of people."
And again in "The Two Noble Kinsmen," act v. sc. 4—
"Oh, you heavenly charmers, What things you make of us!"