With Faith, the writers explored the nature of power, and the boundaries and consequences of its use. They wanted to address the issue that, whether the creatures a Slayer kills are good or evil, she is still a professional killer. Co-executive producer Doug Petrie, and writer of Faith-centric episodes such as "Revelations" and "Bad Girls", says one of the things he loves about the character is that Faith is not wrong in describing herself and Buffy as killers. He goes on to discuss a Slayer's rights and responsibilities, and how Faith believes her contributions to society relieve her of any legal or moral responsibilities, a view which Buffy does not share. When writing Faith, Petrie looked to Frank Miller's violent Marvel Comics character Elektra Natchios for inspiration, claiming, "In a different, teen, punkier context, Faith is so much like Elektra."