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- For Iachimo see Jachimo.
- Iago is the villain (and the main character, measured by the number of lines spoken) of Othello.
- Alexander Iden (hist) kills Jack Cade in Henry VI, Part 2.
- Imogen is the daughter of the king in Cymbeline. Her husband, Posthumus, wrongly believes she has been unfaithful and orders her killed.
- Iras is an attendant on Cleopatra, in Antony and Cleopatra. She dies following a kiss from Cleopatra.
- Iris (myth) is depicted by a masquer in The Tempest.
- Isabella (sometimes addressed as Isabel) is the virtuous central female character in Measure for Measure: a novice nun who pleads to Angelo for the life of her brother Claudio.
- For Isidore's Servant, see servant.
Read more about this topic: Shakespearean Characters