One Chicago Season 15 Cast Guide: Who Is Returning & Who Is Leaving for NBC's Long-Running Show

Set to return as the iconic Lt. Kelly Severide is Taylor Kinney. At the time of writing, the actor has begun working on the Chicago Fire Season 14. Last seen, he takes on an active role as core leader and mentor. The new season is set to add more of a personal arc to his character.

Also confirmed to return is Miranda Rae Mayo as Stella Kidd. One of the lead characters, the first responder is a fan-favorite for being the emotional anchor of Firehouse 51. She is married to Kinney's Severide, and fans will surely get more of 'Stellaride' content in the new season.

Merkerson has been a vital cog in Chicago Med as Chief of Patient and Medical Services, Sharon Goodwin since 2015. The actress is slated to return for the new season. Merkerson joined co-star OliverPlatt, and franchise stars Kinney, and Mayo who signed new deals with the network.

Also returning alongside Merkerson is Oliver Pratt as

Dr. Daniel Charles, he head of the hospital's psychiatry department. Known for tackling complex mental health cases, and dealing with his own personal issues, Charles has been a pivotal figure in the hit procedural

Tough as they get, and loyal as they come, Jason Beghe's Sergeant Hank Voight returns for the new season. His relationship with violence will likely be the focal point in Season 14, and fans can't wait to see more of the fierce character.