Oliver

"I love Aliena; say with her that she loves me; consent with both that we may enjoy each other: it shall be to your good; for my father's house and all the revenue that was old Sir Rowland's will I estate upon you, and here live and die a shepherd." (V.ii.69)

In this play, Oliver is a dynamic character.  Through the acts, he experiences changes that morph his personality.  In Act I, Oliver treats his brother Orlando like dirt.  Instead of sending him to school to get an education, he treats him as a peasant.  At one point, Oliver agrees to kill his younger brother in order to please Duke Frederick.  After agreeing to this, Oliver experiences a change in personality.  Duke Frederick's threats and mistreatment toward Orlando actually make Oliver want to defend his brother.  Another event that changed Oliver is when he falls in love with Aliena.  In the excerpt above, Oliver says that he will give up his former life in order to live the life of a shepherd with his girl.  This means that Oliver actually cares about someone other than himself and things other than riches.  Also, he decides to give his estate to Orlando - this is a major jump.  In Act V, Oliver loves his brother enough to leave his own possessions to him.  Without dynamic character's, the story line would never progress and no theme would be projected to the reader.