SCENE: A City in Illyria; and the Sea-coast near it.
- ORSINO, Duke of Illyria
- SEBASTIAN a young Gentleman, brother to Viola
- ANTONIO, a Sea Captain, friend to Sebastian.
- A SEA CAPTAIN, friend to Viola
- VALENTINE, Gentleman attending on the Duke
- CURIO, Gentleman attending on the Duke
- SIR TOBY BELCH, Uncle of Olivia
- SIR ANDREW AGUECHEEK
- MALVOLIO, Steward to Olivia
- FABIAN, Servant to Olivia
- FESTE, Jester to Olivia
- OLIVIA, a rich Countess
- VIOLA, in love with the Duke
- MARIA, Olivia's Woman
Lords, Priests, Sailors, Officers, Musicians, and other Attendants.