Othello: Act IV; Dynamic Character

       In Shakespeare's tragedy, Othello, there are several dynamic characters.  One specifically is Othello himself.  At the beginning of the play he is very calm and cool headed when accused of drugging or using magic on Desdemona.  Othello simply tells the Senate to go ask Desdemona.  By the fourth act he has become distrusting and suspicious of Desdemona.  Othello's sarcasm in Act IV shows his distrust of Desdemona.

"What not a whore?" (IV. ii. 86).

In this scene Desdemona does not understand why Othello is being so suspicious towards her. She had not realized that his personality of absolute trust had change.  This change makes him a dynamic character.