- Orsino, Duke of Illyria.
- Sebastian, brother to Viola.
- Antonio, a sea captain, friend to Sebastian.
- A Sea Captain, friend to Viola.
Gentlemen Attending on the Duke.
- Sir Toby Belch, uncle to Olivia.
- Sir Andrew Aguecheek
- Malvolio, steward to Olivia.
- Maria, Olivia's woman.
- Lords, Priests, Sailors, Officers, Musicians, and other Attendants.
A city in Illyria, and the sea-coast near it