Final answer:
Cordelia, Viola, and Portia are considered to be the most virtuous characters in Shakespeare's plays.
Step-by-step explanation:
In Shakespeare's plays, the most virtuous character can vary depending on the interpretation of the text. However, one character often considered to be virtuous is Cordelia from the play 'King Lear'. Cordelia is portrayed as honest, loyal, and selfless, which are qualities associated with virtue.
Another character who can be seen as virtuous is Viola from 'Twelfth Night'. Viola is resourceful, brave, and compassionate, making her a morally upright character.
Finally, Portia from 'The Merchant of Venice' is often regarded as virtuous. She is intelligent, kind-hearted, and displays mercy and forgiveness towards others.