Chicago Fire

Dora Madison played Alissa "Jelly Bean" Martin in 'Chicago P.D.', before she was introduced as Jessica "Chili" Chilton, a paramedic, in 'Chicago Fire'. Her "Chili" character did not appear in 'Chicago P.D.'.

Filmed in Chicago, Firehouse 51 is actually Station 18, which is located at 1360 S. Blue Island Ave in Chicago.

Before starring as Firefighter Peter Mills, Charlie Barnett guest appeared in Dick Wolf's 'Law & Order: Special Victims Unit' as Chuck Mills, a rapist, and in 'Law & Order: Criminal Intent' as Dr. Sam Harris.