Choose one major character from Hamlet. Discuss the type of power this character has throughout the play and discuss the extent to which his or her power changed throughout the play and the reasons for this static or dynamic change.

Choose one major character from Hamlet.  Discuss the type of power this character has throughout the play and discuss the extent to which his or her power changed throughout the play and the reasons for this static or dynamic change.

(The Tragedy of Hamlet, Prince of Denmark)
cite evidence from the book and the play please.