Gotham is adding a mentor and hero figure for Jim Gordon to look up to and it will be played by The Shield and Fantastic Four actor Michael Chiklis. The new series regular will be playing Captain Nathaniel Barnes, who Gotham's producers describe as:
[Barnes] lands on the GCPD like a tornado, ripping out the dead wood of Gotham's police force. He is a law and order zealot; unafraid of making enemies – on either side of the law. For Gordon (Ben McKenzie), Barnes is a hero and a mentor, someone with whom he can share the burden of heroism. Captain Barnes proves himself to be a strong ally to Gordon… but one day he will make an equally powerful enemy.
Gotham returns to Fox on September 25th.