Orsino, Duke of Illyria, declares his love for Olivia, but she will not see him.
ORSINO DECLARES HIS LOVE FOR OLIVIA
A shipwreck strands Viola, and she believes that her brother has died.
Viola, disguised as a man and using the name Cesario, is now working for Orsino.
Viola (dressed as Cesario) meets Olivia and declares Orsino's love for her. Olivia immediately falls in love with the young 'man' and asks 'him' to come again.
VIOLA IS EMPLOYED BY ORSINO
OLIVIA AND CESARIO MEET
Sir Toby, Feste and Sir Andrew get drunk and party loudly in the middle of the night. Malvolio comes down to quite them down with them, but to no effect.
Maria will write a love letter to Malvolio which seems to come from Olivia and leave it where he cannot miss it.
Viola's brother, Sebastian arrives thinking his sister has drowned
ANOTHER SHIPWRECK SURVIVOR ARRIVES
THE PRANK ON MALVOLIO
MALVOLIO AND SIR TOBY'S ARGUMENT
Toby, Maria and Feste imprison him in a dark dungeon after Olivia claims him mad.
Sir Andrew, convinced that Olivia favours Cesario over him, is persuaded by Sir Toby to challenge 'him' to a duel. Both equally terrified, Andrew and 'Cesario' fight but are interrupted by Antonio.
Seeing Antonio gives Viola hope that her brother may have also survived the shipwreck.
VIOLA LEARNS THAT HER BROTHER MAY BE ALIVE
SIR ANDREW ISSUES A CHALLENGE
MALVOLIO IS IMPRISONED
The twins are re-united, the confusion is resolved and Orsino and Viola are free to proclaim their love for one another.The trick played on Malvolio is revealed and we learn that Sir Toby has married Maria. Malvolio is released from his prison cell.
Orsino- Duke of Illyria
Viola- sister of Sebastian/ later disguised as Cesario
Sebastian- Viola's twin brother
Antonio- A sea captain
Olivia- a countess, love interest for Orsino and Cesario/Viola
Maria- Olivia's waiting gentle-woman
Sir Toby- Olivia's kinsman
Sir Andrew- companion of Sir Toby
Malvolio- Olivia's steward
Feste- the clown/ Olivia's jester
.Shakespeare, William. Twelfth Night. The Norton Anthology of English Literature, 9th ed., vol. 1, edited by Stephen Greenblatt, et al. W. W. Norton, 2012, pp 1189-1250.