'Chicago Fire' trivia and fun facts

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

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.'.

Some scenes which take place in the Firehouse 51 kitchen are filmed in the actual firehouse kitchen, others are filmed on a studio set. If you see a door to the left of the cooking area, that is the studio set; if you see a drinking fountain, that's the actual firehouse.

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.