Copper kicks off its second season run on Sunday, June 23.
And coming off a critically-acclaimed opening run of episodes, the BBC America original will be beefing up its cast impressively this summer:
Billy Baldwin is on board for the final pair of episodes as a Tammany Hall fixer, while Donal Logue (Terriers, Sons of Anarchy) will make even more of an impact as Brendan Donovan, a general just back from the Civil War who exerts major power in Five Points.
That character is prominently featured in the following promo: