The Renaissance more than any other age deals with violence,
crime, and punishment. In most of the plays of the age, especially the
Jacobean plays there are two distinct types of criminals. One type is
the tyrant, a man whose thirst for power propels him to exploit other
individuals, he is also able to disguise his vicious actions under the
robe of respectability. The other type of criminal is the avenger, an
individual victimized and exploited by the tyrant. Bosola, the villain
of the play - The Duchess of Malfi (which has been discussed in this
paper) is an individual who has been a victim and feels he has not
been paid for in gratitude. As an avenger, Bosola takes justice and
law into his own hands, as the centre of justice itself is corrupted. In
the process of taking revenge, Bosola undergoes a change as he
evolves into an evil and degenerate man, and thereby Ioses his true
identity. Thus,in order to fight the corrupted system, he thinks he
ought to become a part of it.