Guest Stars Ward Horton as Charles Fane Audra McDonald as Dorothy Scott Claybourne Elder as John Adams Ashlie Atkinson as Mamie Fish David Furr as Dashiell Montgomery 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 Tony Carlin as Tritton Peter Bradbury as Jay Gould Will Connolly as Curate Charles Everett as Emmett Harry Smith as Mr. Patrick Ryan James Riordan as Dr. Lewis J.T. O'Connor as Security Guard Emilie Kouatchou as Mabel Lachlan Quartermous as Russell House Footman Laughton Royce as Isaiah Jade Radford as Betsy James Hindman as Mr. Schubert Kevin Hogan as Butler Frank Ridley as Mr. Whitmore Kevin Dennis as Mr. Roebling