In 2021, Mackie revealed the rapper asked him if he could add some stuff to the script to make Papa Doc more unlikeable. He elaborated that prior to the final battle, Eminem googled him and "He basically makes fun of me as Papa Doc. And then I'm like, 'That's a little personal Mr. Marshall ... I grew up in a nice house, my parents were nice to me, why are you making fun of me?' He literally walked over and said, 'This gonna be dope.'"