NBC's Chicago Fire Premiere

Actor Jesse Spencer; Jose Santiago, Chicago Fire Department Commissioner; Rahm Emanuel, Mayor of Chicago; Dick Wolf, Executive Producer; and Actor Taylor Kinney at NBC's Chicago Fire World Premiere at the Chicago History Museum in Chicago, Illinois on Tuesday, Oct. 2. Guests included more than 350 firefighters from the Chicago Fire Department representing multiple generations. “Chicago Fire” premieres Wed Oct. 10 at 10:00 pm ET/PT -- (Photo by: Paul Drinkwater/NBC)

Actors Yuri Sardarov, Joe Minoso and Christian Stolte from the cast of Chicago Fire.

Series star Taylor Kinney, who plays Lt. Kelly Severide, leader of the fictional Rescue Squad 3.

Series star Jesse Spencer, formerly of Fox's House, walks the press junket at the Chicago Fire premiere. Spencer plays Lt. Matthew Casey.

The screening of Chicago Fire at the Chicago History Museum.

Chicago Fire Commissioner Jose Santiago and FIRE CHIEF Editor Lisa Allegretti following the premiere.

FIRE CHIEF Art Director Sundee Koffarnus with Eamonn Walker, who plays Bttn. Chief Wallace Boden on Chicago Fire. Walker is best known for his work on HBO's Oz.

FIRE CHIEF Editor Lisa Allegretti with actor David Eigenberg, who plays veteran firefighter Christopher Herrmann on Chicago Fire. Eigenberg is best known for his work on HBO's Sex and the City.

FIRE CHIEF's Sundee Koffarnus and Lisa Allegretti with Chicago Fire star Taylor Kinney.

Chicago Fire" Cast and Dick Wolf pictured (l-r): David Eigenberg, Monica Raymund, Eamonn Walker, Taylor Kinney, executive producer Dick Wolf, Jesse Spencer, Lauren German, Teri Reeves and Charlie Barnett at the World Premiere of the New NBC Drama "Chicago Fire" at the Chicago History Museum in Chicago, Illinois on Tuesday, Oct. 2. Guests included more than 350 firefighters from the Chicago Fire Department representing multiple generations. “Chicago Fire” premieres Wed Oct. 10 at 10pm ET/PT -- (Photo by: Paul Drinkwater/NBC).