Renee Walker is a fictional character on the TV series 24, portrayed by Annie Wersching.She is an FBI special agent, and appeared in both season 7 and season 8.hen first meeting Jack, Renee was reluctant to do the things that Jack Bauer would do in order to get what they needed such as torture, but by the end of Day 7, Renee resorts to torture in order to get the answers that she needs.