Adelaide Kane
as Mary Stuart, Queen of Scots
Megan Follows
as Catherine de' Medici
Celina Sinden
as Greer
Torrance Coombs
as Sebastian "Bash"
Anna Popplewell
as Lola
Jonathan Keltz
as Leith Bayard
Toby Regbo
as Francis II of France
Caitlin Stasey
as Kenna
Craig Parker
as Stéphane Narcisse
Rose Williams
as Claude of France
Rachel Skarsten
as Elizabeth I of England
Spencer MacPherson
as Charles IX of France
Alan Van Sprang
as Henry II of France
Ben Geurens
as Gideon Blackburn
Will Kemp
as Henry Stuart, Lord Darnley
Dan Jeannotte
as James Stewart, Earl of Moray
Jonathan Goad
as John Knox
Jenessa Grant
as Aylee
Sean Teale
as Louis, Prince of Condé