Chicago P.D. is another show going through some cast changes - which means not everyone is returning for season 13. The One Chicago franchise is made up of three shows: Chicago Fire, Chicago Med and Chicago P.D. In recent years, each series has surprised fans with fan-favorite cast members coming and going more frequently than on other shows. NBC's president of program planning, Jeff Bader, noted in the past that he isn't worried how this would affect the One Chicago universe "Cast comes in, cast goes out," Bader told TVLine in an interview published in July 2024."It's interesting.