Mickey Duka

Mickey Duka is a redeemed villain, because he helped Frank Castle defeat the Saints in the 2004 film Punisher.

Biography
Mickey Duka is a subordinate of Howard Saint and a friend of Bobby Saint, he is also a small time crook, on his own. He convinces the Latter to participate with him in the weapons trade with Otto Krieg, a new merchant. The meeting goes wrong, the police and the FBI breaks in, during the gun fight, Bobby Saint is killed and Mickey Duka gets arrested.

After being sent to jail, Duka is immediately freed and taken to the Saint's home, where Quentin Glass tortures him in order to punish him for Bobby's death. However Howard tries to kill him, but let's him live when he's told who's the contact of Bobby was, and later discovers that under the identity of Otto Krieg was hiding the FBI agent Frank Castle.

Some time later after the Castle's Family have been wiped out, Mickey Duka has been kidnapped by the Punisher, who frightens him through torture. Almost immediately, Duka revealed that he actually hates the Saints and freely agrees to help The Punisher kill them all. Mickey starts to manipulate Howard, following Frank's instructions, and manages to convince Howard into thinking that his wife is cheating on him with his best friend.

Mickey is hidden somewhere in the Saint's home, while Howard trashed Livia's jewelry boxes and a box of movie tickets, Livia came back from the movies only to get abused by her angry husband, they argued, he said that he found her earring on Quentin's bed, then he revealed to Livia that Quentin's body is rolled in carpet, horrified Livia said Quentin was gay, Howard didn't believe it and slapped her, when she told the truth about Quentin, Howard and one of his men forced Livia outside to a limosine to the bridge, Mickey came from behind as he watched them leave the home. When the Saints are killed, Mickey is the only subordinate left alive by The Punisher and heirs Howard's club.