Guest Stars Ward Horton as Charles Fane Audra McDonald as Dorothy Scott Claybourne Elder as John Adams David Furr as Dashiell Montgomery Ashlie Atkinson as Mamie Fish Robert Sean Leonard as Reverend Matthew Forte Rebecca Haden as Flora McNeil Ben Lamb as The Duke of Buckingham Melanie Nicholls-King as Sarah Jane Smith Thompson Garnet Darren Goldstein as Henderson David Wilson Barnes as Norman Tate Liz Wisan as Emily Warren Roebling Andy Grotelueschen as Mr. Hastings Co Starring Craig Geraghty as Griffin Peter Bradbury as Jay Gould Tony Carlin as Tritton Will Connolly as Curate James Riordan as Dr. Lewis Kevin Hogan as Butler James Hindman as Mr. Schubert Charles Everett as Emmett J.T. O'Connor as Security Guard Lachlan Quartermous as Russell House Footman Emilie Kouatchou as Mabel Laughton Royce as Isaiah Jade Radford as Betsy Harry Smith as Mr. Patrick Ryan Frank Ridley as Mr. Whitmore Kevin Dennis as Mr. Roebling