Taylor Kinney

As the foster parents cultivate different relationships with their teen son, Mayo tells NBC Insider what emotions Stella is battling in an exclusive interview.

Check out this swoon-worthy 2009 throwback photo of the Chicago Fire fan favorite.

"He's a joy to be around," Chicago Fire's Miranda Rae Mayo told NBC Insider about the One Chicago newcomer.

You may have seen the star shine long before he became Kelly Severide.

In a morbid twist of irony, one of Firehouse 51's most dedicated heroes lost everything.

Who knew Kelly Severide was hiding such impressive ink?

Chicago Fire's Season 14 premiere featured gut-plummeting lows followed by euphoric highs.

A Captain's sacrifice, a gut-wrenching goodbye, and a shocking reveal ignites the flames of Season 14.

Meet the fearless firefighters and paramedics shaping Chicago Fire Season 14.

Taylor Kinney and other One Chicago stars reflected on where their characters began.

Severide is back in action on Chicago Fire!

Long before the days of rescuing lives on Chicago Fire, the actor was carrying golf clubs for strangers.

Kinney was beaming while recalling this hilarious moment on The Tonight Show.

Firehouse 51 isn't going anywhere, Chi-Hards. 

"We kind of laughed," the Chicago Fire star told Kelly Clarkson about getting recognized during a traffic stop. 

The Season 6 premiere of Chicago Fire both delivered the heat and sent Casey and Severide flying. Literally. 

This is not a drill, Chicago Fire fans. We repeat: Not. A. Drill. 

"You can practice and try on synthetics ... but nothing that's like real skin," the Chicago Fire star explained.

Pascal ended Fire's latest episode in handcuffs. 

From drinks at Molly's to hectic mayday calls, the friendships forged on Chicago Fire are the soul of the show.