Finally, in the season 12 finale, Chicago Fire bid farewell to original cast member Eamonn Walker, marking the end of his 12 seasons as a series regular in the role of Chief Wallace Boden.

It would be a surprising addition to the Chicago Fire Season 13 cast if actress Caitlin Carver walked into Firehouse 51 again. Carver first appeared as Paramedic Emma Jacobs on Chicago Fire Season ...