After a multitude of cast exits in the One Chicago universe, Eamonn Walker is returning in the role ... that we were off and running,” producer Dick Wolf shared in a statement at the time.

Producer Dick Wolf sent Deadline an exclusive statement about Walker’s change in status, below. “Eamonn was the first actor cast on Chicago Fire, and we knew once he said yes, that we were off ...

Walker starred on the Dick Wolf procedural from seasons one through 12, exiting the series last season when his character accepted a promotion to Chicago Fire Department’s Deputy Commissioner.