| The Duke. | |
| Ortellus, | next of kin to the Duke; of an ambitious and treacherous nature. |
| Arbatus, | supposed brother to Artabella. |
| Philidor, | a mad kinsman of the Duke's, in love with Mirida. |
| Zoranzo, | the Duke's prisoner of war, in love with Amarissa. |
| Pinguister, | two ridiculous lovers of Mirida. |
| Lean-man, | |
| Doctor to Pinguister. | |
| Tailor to Lean-man. | |
| Jailor. | |
| Servant to Philidor. | |
| Boy. | |
| Clown. | |
| Guard and attendances. | |
| Amphelia, | in love with the Duke. |
| Artabella, | the Duke's sister, but taken for the sister of Arbatus. |
| Mirida, | Philador's mad mistress. |
| Amarissa, | in love with Zoranzo. |
| Six Ladies. | |
| Three Nurses with children. |
Scene, Italy.
ALL MISTAKEN.