Guest Stars Morena Baccarin as Dr. Leslie Thompkins Drew Powell as Butch Gilzean / Solomon Grundy Clare Foley as Ivy Pepper Anthony Carrigan as Victor Zsasz Cameron Monaghan as Jerome Valeska Carol Kane as Gertrud Kapelput Dashiell Eaves as Kelly Elliot Villar as Thomas Schmidt Mark Margolis as Paul Cicero Jeremy Bobb as Alphonse Grayson Abbi Snee as Mary Lloyd James Monroe Iglehart as Ringmaster Slate Holmgren as Owen Lloyd Robert Gorrie as John Grayson Co Starring J.W. Cortes as Detective Alvarez Alex Corrado as Gabe Joe Lanza as Detective Zeke Vanessa Kai as Board Member #2 Marcin Paluch as Foolhardy Drunk Simon Feil as Board Member #1