Friday Night Lights' alum joins 'Chicago Fire' 'Chicago Fire': Who said goodbye to Firehouse 51? 'Shameless' alum Nick Gehlfuss joins 'Chicago P.D.' By clicking “Accept All Cookies”, you agree ...

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Chicago Fire is NBC's long-running drama that premiered in 2012 and has stayed on air for 13 full seasons. It's one of the network's highest-rated shows and is soon kicking off a new season to ...