Characters:Viola
A young woman of aristocratic birth, and the play’s protagonist. Washed up on the shore of Illyria when her ship is wrecked in a storm, Viola decides to make her own way in the world. She disguises herself as a young man, calling herself “Cesario,” and becomes a page to Duke Orsino. She ends up falling in love with Orsino—even as Olivia, the woman Orsino is courting, falls in love with Cesario. Thus, Viola finds that her clever disguise has entrapped her: she cannot tell Orsino that she loves him, and she cannot tell Olivia why she, as Cesario, cannot love her. Viola’s poignant plight is the central conflict in the play.
Orsino
A powerful nobleman in the country of Illyria. Orsino is lovesick for the beautiful Lady Olivia, but finds himself becoming more and more fond of his handsome new page boy, Cesario, who is actually a woman—Viola. Orsino is a vehicle through whom Shakespeare explores the absurdity of love. A supreme egotist, Orsino mopes around complaining how heartsick he is over Olivia, when it is clear that he is chiefly in love with the idea of being in love and enjoys making a spectacle of himself.
Olivia
A wealthy, beautiful, and noble Illyrian lady. Olivia is courted by Orsino and Sir Andrew Aguecheek, but to each of them she insists that she is in mourning for her recently deceased brother and will not marry for seven years. Olivia and Orsino are similar characters in that each seems to enjoy wallowing in his or her own misery. Viola’s arrival in the masculine guise of Cesario enables Olivia to break free of her self-indulgent melancholy.
Sebastian
Viola’s lost twin brother. When Sebastian arrives in Illyria, traveling with Antonio, his close friend and protector, he discovers that many people seem to think that they know him. Furthermore, the beautiful Lady Olivia, whom Sebastian has never met, wants to marry him.
Malvolio
The straitlaced steward—or head servant—in the household of Lady Olivia. Malvolio is very efficient but also very self-righteous, and he has a poor opinion of drinking, singing, and fun. His priggishness and haughty attitude earn him the enmity of Sir Toby, Sir Andrew, and Maria, who play a cruel trick on him, making him believe that Olivia is in love with him. In his fantasies about marrying his mistress, Malvolio reveals a powerful ambition to rise above his social class.
Fool
The clown, or court jester, of Olivia’s household. The Fool, also known as Feste, moves between Olivia’s and Orsino’s homes, earning his living by making pointed jokes, singing old songs, being generally witty, and offering good advice cloaked under a layer of foolishness. In spite of being a professional fool, Feste often seems the wisest character in the play.
Sir Toby Belch
Olivia’s uncle. Olivia lets Sir Toby live with her but does not approve of his rowdy behavior, practical jokes, heavy drinking, late-night carousing, or friends (specifically the idiotic Sir Andrew). But Sir Toby has an ally—and eventually a mate—in Olivia’s sharp-witted serving-woman, Maria. Together, they bring about the triumph of fun and disorder, which Sir Toby embodies, and the humiliation of the controlling, self-righteous Malvolio.
Maria
Olivia’s clever, daring young serving-woman. Maria is remarkably similar to her antagonist, Malvolio, who harbors aspirations of rising in the world through marriage. However, Maria succeeds where Malvolio fails—perhaps because she is more in tune than Malvolio with the anarchic, topsy-turvy spirit that animates the play.
Sir Andrew
A friend of Sir Toby’s. Sir Andrew Aguecheek attempts to court Olivia, but he doesn’t stand a chance. He thinks that he is witty, brave, young, and good at languages and dancing, but he is actually a complete idiot.
Antonio
A man who rescues Sebastian after his shipwreck. Antonio has become very fond of Sebastian, caring for him, accompanying him to Illyria, and furnishing him with money—all because of a love so strong that it seems to be romantic in nature. When the principal characters marry at the end of the play, Antonio is left out, his love for Sebastian unrequited.
Valentine and Curio
Two gentlemen who work for Duke Orsino.
Fabian
A servant in Olivia’s household. He assists Maria and Sir Toby in their plot to humiliate Malvolio.
Captain
The sea captain who rescues Viola after the shipwreck. He helps Viola become a page to Duke Orsino and keeps her identity a secret.

Orsino the duke of Illyria

Olivia countess of high social standing and great beauty

Sebastian Viola's twin brother

Viola and disguised as a man

The drama starts with Orsino loves Olivia but she doesn't loves him.

Olivia decides to veil herself for seven years, to honor her recently deceased brother's memory.

She doesn't want to meet any male person or to show her face to any male person.

Orsino loves her so much, he sent so many messengers to Olivia but she rejects his love

Viola and Sebastian are twins, they were travelling in the sea, in the main time there was a storm in the sea, and their boat was shipwreck.

The ship was totally destroyed.

Viola with the help of the captain reaches to the seashore, she was survived and she thinks that her brother Sebastian has died; Sebastian also thinks that his sister has died.

Viola with the help of the captain reaches Illyria, she knows that Orsino is in love with Olivia but she does not love him.

Viola wants to help Olivia, but she learns that will be impossible. Viola was so much confused that how she will help her.

She decides to disguised herself as a man (Cesario)

Cesario becomes the servant of Orsino and Viola deceived Orsino and Olivia

Orsino uses Cesario as a messenger to Olivia to express his love (I am not what I am) here Cesario wants to clear to Olivia what he is, but Olivia doesn't want to listen to him.

After some time Sebastian reaches to Illyria with the help of Antonio, Antonio decides to follow Sebastian to the duke of Orison's court, even though he has many enemies there.

Antonio is accepted by Sebastian to travel with him to the duke's court.

In Illyria people consider Sebastian and Cesario one person.

When Olivia meets Sebastian she loves him. Sebastian amazed that this beautiful woman, he doesn’t know, loves him replies to Olivia that he will be ruled by her, and the two setoff to marry immediately.

Sebastian can barely believe his luck, a beautiful woman (Olivia) loves him and has given him a pearl.

Olivia explains that their secret marriage will be revealed later.

After getting married Sebastian goes to the sea for some time. Olivia sees Cesario and considers him her husband (Sebastian), Cesario was so much confused.

Olivia despairs that her husband, Cesario, who really is Sebastian, would leave with Orsino.

Orsino will punish rather than be with his wife and she claims betrayal by Cesario (Viola) because Orsino thinks that his servant betrayed him by taking Olivia for himself and decides to punish him.

Then Orsino sees both Cesario and Sebastian together. He is amazed to see to couples of the same person, with two same faces.

Olivia is amazed too.

Sebastian declared that he is the husband of Olivia, and Cesario declared that he is Viola.

Eventually they realize that since they knew the same father they are indeed brother and sister.

Orsino calls Olivia his sister, and Orsino takes Cesario for his mistress and we presume later his wife

1-Sir Toby Belch, Uncle to Olivia: he spends his time drinking in Olivia's house with other drinker Sir Andrew, and that was confused Olivia and her servant Maria.
Sir Toby enjoys playing tricks on Malvolio and his friends Andrew and anyone else who capture his fleeting attention.
He is so smart. Maria tells Fabian, Sir Toby and Sir Andrew, all of whom hate Malvolio, that she has penned the letter that will convince Malvolio that Lady Olivia loves him.
2-Sir Andrew Aguecheek: The drinking partner of Sir Toby and he like Sir Toby having little love for the annoying Malvolio.
He is brave, young good at dancing. But actually he is Naive by nature; he is manipulated by Sir Toby into pursuing Lady Olivia since this will maintain Sir Toby's drinking lifestyle. Later Sir Andrew is manipulated into challenging Cesario, who becomes a threat to Sir Toby's plans.
Sir Andrew decides to have Sebastian punished by the law of Illyria despite the fact that he started the fight.
3- Antonio: A Sea Captain by trade he saves the life of Sebastian after shipwrecked and both go to Illyria.
Even though he has many enemies there
And he arrives; pledging to fight Sir Andrew on Cesario's (Viola's) behalf who he thinks is Sebastian since Viola disguised as a man now looks like her twin brother Sebastian.

2- Viola and disguised as a man, Cesario: the young lady aristocracy, she has a twin brother Sebastian. The secret admirer of Orsino, Viola comes to work for Orsino when having been shipwrecked; she disguises herself as a man, and works for the Duke. Much favored by the Duke, Viola is entrusted to convey the Duke's love to Countess Olivia. This later causes problems for Viola, who serves her master faithfully, despite desiring Orsino for herself and being the unwitting (and unwilling!) target of Countess Olivia's affections. She loves Orsino but she can't tell him about her love because he loves Olivia. This is the central conflict in the play.
3- Lady Olivia: A countess of high social standing and great beauty, she is controlled by Orsino and Andrew's love , but she is telling that she is mourning the death of her brother and veil not to marry for seven years . Later she falls in Sebastian love and marries him.

4- Sebastian: Viola's twin brother. When the ship he and Viola were traveling on sinks, he fears his sister dead, as her sister does of him. He is very beautiful, smart gentleman. He reaches Illyria with the help of Antonio, who saved his life. Olivia falls in his love and then they marry, he is notable as round character.

1-Sir Toby Belch, Uncle to Olivia: he spends his time drinking in Olivia's house with other drinker Sir Andrew, and that was confused Olivia and her servant Maria.
Sir Toby enjoys playing tricks on Malvolio and his friends Andrew and anyone else who capture his fleeting attention.
He is so smart. Maria tells Fabian, Sir Toby and Sir Andrew, all of whom hate Malvolio, that she has penned the letter that will convince Malvolio that Lady Olivia loves him.
2-Sir Andrew Aguecheek: The drinking partner of Sir Toby and he like Sir Toby having little love for the annoying Malvolio.
He is brave, young good at dancing. But actually he is Naive by nature; he is manipulated by Sir Toby into pursuing Lady Olivia since this will maintain Sir Toby's drinking lifestyle. Later Sir Andrew is manipulated into challenging Cesario, who becomes a threat to Sir Toby's plans.
Sir Andrew decides to have Sebastian punished by the law of Illyria despite the fact that he started the fight.
3- Antonio: A Sea Captain by trade he saves the life of Sebastian after shipwrecked and both go to Illyria.
Even though he has many enemies there
And he arrives; pledging to fight Sir Andrew on Cesario's (Viola's) behalf who he thinks is Sebastian since Viola disguised as a man now looks like her twin brother Sebastian.

2- Viola and disguised as a man, Cesario: the young lady aristocracy, she has a twin brother Sebastian. The secret admirer of Orsino, Viola comes to work for Orsino when having been shipwrecked; she disguises herself as a man, and works for the Duke. Much favored by the Duke, Viola is entrusted to convey the Duke's love to Countess Olivia. This later causes problems for Viola, who serves her master faithfully, despite desiring Orsino for herself and being the unwitting (and unwilling!) target of Countess Olivia's affections. She loves Orsino but she can't tell him about her love because he loves Olivia. This is the central conflict in the play.
3- Lady Olivia: A countess of high social standing and great beauty, she is controlled by Orsino and Andrew's love , but she is telling that she is mourning the death of her brother and veil not to marry for seven years . Later she falls in Sebastian love and marries him.

4- Sebastian: Viola's twin brother. When the ship he and Viola were traveling on sinks, he fears his sister dead, as her sister does of him. He is very beautiful, smart gentleman. He reaches Illyria with the help of Antonio, who saved his life. Olivia falls in his love and then they marry, he is notable as round character.