Marc Kudisch (The Proprietor), Neil Patrick Harris (Balladeer/Lee Harvey Oswald), Michael Cerveris (John Wilkes Booth), Eamon Foley (Billy), James Clow (President Gerald Ford/James Blaine), Becky Ann Baker (Sara Jane Moore), Mary Catherine Garrison (Lynette "Squeaky" Fromme), Alexander Gemignani (John Hinckley, Jr.), Mario Cantone (Samuel Byck), Jeffrey Kuhn (Giuseppe Zangara), James Barbour (Leon Czolgosz), Merwin Foard (President James Garfield), Denis O'Hare (Charles Guiteau)