Guest Stars J.W. Cortes as Detective Alvarez Anthony Carrigan as Victor Zsasz Cameron Monaghan as Jeremiah Valeska Francesca Root-Dodson as Ecco Jaime Murray voices Theresa Walker Alex Morf as Sykes Co Starring Jonathan Holtzman as Grief-Stricken Citizen #1 Joan Porter as Old Lady Jordan Carey as Grief-Stricken Citizen #2 Vick Krishna as Citizen Witness