Othello · Character

Michael Cassio

Othello's newly appointed lieutenant, a Florentine theorist of war whose courtly manners and easy charm mask a fatal weakness for drink.

major

Also known as Cassio, Lieutenant Cassio, good Cassio

First appearance: othello

As a major figure in Othello, Michael Cassio is not background color—the story leans on what they do once the chapter opens.

Mentioned by Iago as the newly appointed lieutenant, a 'great arithmetician' from Florence, whom Iago resents.

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Cassio won the lieutenancy Iago coveted, and his polished courtesy — kissing Emilia in greeting, praising Desdemona as 'our great captain's captain' — marks him as a man of the drawing room as much as the field. He loves Othello genuinely and serves as the go-between of the Moor's courtship, which makes his fall from favor so painful. His disgrace in Cyprus sets in motion the very reconciliation Desdemona will plead for.

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See Michael Cassio in othello

Character Web

12 connections

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Relationship types

Other

Character groups

Venetian power and domestic circle
Protagonist

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Narrative arc

Story tension across the book.

Setup
Escalation
Breaking point
Closing

This scene is the dramatic climax because it marks the emotional and psychological peak of Iago’s manipulation…

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In the story

Michael Cassio appears across 11 companion beats. Open any chapter in the free preview to see the notes beside the text.

Scene I
Mentioned by Iago as the newly appointed lieutenant, a 'great arithmetician' from Florence, whom Iago resents.
Scene II
Delivers the duke's summons for Othello's urgent appearance.
Scene III
Not directly present in this scene, but referenced as the newly promoted lieutenant whom Iago resents.
Scene I
Welcomes Desdemona and Emilia to Cyprus, showing courteous manners that Iago uses as evidence of his supposed lechery.
Scene III
Gets drunk and brawls, losing his reputation and position.
Scene I
Cassio seeks to regain Othello's favor by enlisting Desdemona's help, showing his desperation and trust in Iago.
Scene III
Mentioned in Iago's fabricated dream as having spoken of Desdemona in his sleep.
Scene IV
Seeks Desdemona's help to regain Othello's favor, then gives the handkerchief to Bianca.
Scene I
Laughs and jokes with Iago about Bianca, unknowingly fueling Othello's jealousy.
Scene I
Wounded in the leg by Iago during the ambush.
Scene II
Brought in wounded; learns of Iago's plot and is appointed governor of Cyprus.

Chapter companion notes

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See Michael Cassio in othello

See Michael Cassio in Scene I