There are a few new faces blowing into the Windy City at the start of Chicago Fire season 13 — and Us Weekly has your guide to all the show’s changes. When Chicago Fire picks up in September, viewers will recognize most of the firefighters at Firehouse 51 including Kelly Severide ( Taylor Kinney ), his wife, Stella Kidd ( Miranda Rae Mayo ), Christopher Herrmann ( David Eigenberg ), Randall McHolland ( Christian Stolte ) and Joe Cruz ( Joe Minoso ). Darren Ritter ( Daniel Kyri ) and Violet Mikami ( Hanako Greensmith ) are also set to return in a full-time capacity.

The squad, however, will have a new leader after Eamonn Walker ’s departure as Chief Wallace Boden at the end of season 12. News broke in May that Walker was stepping down as a series regular for season 13, but he hasn’t ruled out making guest appearances. Wallace’s exit came after Kara Killmer left the series in February.

The actress played paramedic Sylvie Brett for almost 10 full seasons. Rome Flynn , who played Jake Gibson for six episodes, also left the show during season 12 as did Alberto Rosende , who portrayed Blake Gallo starting in season 8. Scroll down to learn more about Chicago Fire season 13: During the May finale, Boden decided to run for Deputy Commissioner, knowing if he won he’d have to leave his Firehouse 51 family behind.

He ultimately beat Chief Robinson ( Laura Allen ) and bid farewell to his crew, reminding them he wouldn’t be gone for good. Before he left, Boden told Hermann (E.