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 Andy Grotelueschen as Mr. Hastings Liz Wisan as Emily Warren Roebling Co Starring Craig Geraghty as Griffin Peter Bradbury as Jay Gould Tony Carlin as Tritton Will Connolly as Curate James Riordan as Dr. Lewis Charles Everett as Emmett Emilie Kouatchou as Mabel Lachlan Quartermous as Russell House Footman Laughton Royce as Isaiah J.T. O'Connor as Security Guard Jade Radford as Betsy Harry Smith as Mr. Patrick Ryan James Hindman as Mr. Schubert Kevin Hogan as Butler Frank Ridley as Mr. Whitmore Kevin Dennis as Mr. Roebling