Shakespeare's villains are complex. Unlike the earlier antiheroes of the revenge or morality plays that were popular in Elizabethan and Jacobean culture, Shakespearean criminals lack the simple clarity of absolute evil. Claudius is a perfect example of a quintessential Shakespearean antagonist.
Claudius is socially adept, and his charm is genuine. He can exhibit deep distress over his "dear brother's death" and admiration for his wife, "Th'imperial jointress to this warlike state." He knows the value of a great funeral, but quickly turns mourning into celebration and moves on "With mirth in funeral and with dirge in marriage" to whatever lies ahead. He is a decisive man, fair in his politics and commanding — if Gertrude's allegiance is any indication — in his bedroom.
The Queen has chosen to marry Claudius, and she defends him even to her son. In fact, she never opposes Claudius in anything. Were he dark and sinister in all things, she would fear and despise him; she follows him willingly even when he arranges to send her beloved son into the jaws of death. He must be sincere in his love for her. He explains his feelings for her at the end of Act IV, but he has proven these feelings consistently throughout the play
The Queen his mother
Lives almost by his looks, and for myself,
My virtue or my plague, be it either which,
She's so conjunctive to my life and soul
That as the star moves not but in his sphere,
I could not by her.
A character who loves is not merely a cold-blooded killer. Like Hamlet, his conflicting imperatives tear him apart.
