Adelaide Kane Queen Mary Actor Megan Follows Queen Catherine Actor Rachel Skarsten Queen Elizabeth Actor Celina Sinden Greer Actor Craig Parker Narcisse Actor Rose Williams Princess Claude Actor Ben Geurens Gideon Blackburn Actor Dan Jeannotte James Actor Jonathan Goad John Knox Actor Spencer MacPherson King Charles Actor Will Kemp Lord Darnley Actor Adam Croasdell Lord Bothwell Guest Star Steve Lund Lord Luc Narcisse Guest Star Nola Augustson Lady Lennox Guest Star Nick Slater Prince Henri Guest Star Ann Pirvu Nicole Guest Star Megan Hutchings Jane Guest Star Steve Byers Archduke Ferdinand Guest Star John Ralston Lord Ruthven Guest Star Graham Abbey Lord Fraser Guest Star Laurie McCarthy Executive Producer Frank Siracusa Executive Producer John Weber Executive Producer Brad Silberling Executive Producer Gretchen J. Berg Executive Producer Aaron Harberts Executive Producer Andy Mikita Director April Blair Writer Robert D. Doty Writer