Adelaide Kane Queen Mary Actor Megan Follows Queen Catherine Actor Torrance Coombs Bash Actor Toby Regbo Prince Francis Actor Jenessa Grant Aylee Actor Celina Sinden Greer Actor Caitlin Stasey Kenna Actor Anna Popplewell Lola Actor Alan Van Sprang King Henry Actor Rossif Sutherland Nostradamus Guest Star Yael Grobglas Olivia D'Amencourt Guest Star Kathryn Prescott Penelope Guest Star Gil Darnell Duke Christian de Guise Guest Star Michael Therriault Lord Aloysius Castleroy Guest Star Ted Atherton Lord Hugo Guest Star Katie Boland Clarissa Guest Star Anna Walton Diane de Pitiers Guest Star Jonathan Keltz Leith Bayard Guest Star Giacomo Gianniotti Lord Julien Varga Guest Star Katy Grabstas Sarah Guest Star Laurie McCarthy Executive Producer, Writer Frank Siracusa Executive Producer Mike Rohl Director Fred Gerber Director Holly Dale Director Jeremiah S. Chechik Director Steve DiMarco Director Chris Grismer Director Scott Peters Director Drew Lindo Writer Doris Egan Writer Wendy Riss Writer Alan McCullough Writer P.K. Simonds Writer Hannah Schneider Writer Edgar Lyall Writer Daniel Sinclair Writer Stephanie Sengupta Writer David Strauss Writer