TV series
Love is the most dangerous subject.
Mary, Queen of Scots, faces political and sexual intrigue in the treacherous world of the French court.
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Checked Jul 22, 2026
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Mary, Queen of Scots, faces political and sexual intrigue in the treacherous world of the French court.
Cast, crew and production details
Adelaide KaneMary Stuart
Toby RegboFrancis II of France
Will KempHenry Stuart, Lord Darnley
Dan JeannotteJames Stuart
Torrance CoombsSebastian
Megan FollowsCatherine de' Medici
Celina SindenGreer
Caitlin StaseyKenna
The CWUnited States
Warner Bros. TelevisionUnited States
CBS StudiosUnited StatesWatch options above are for the show and may vary by season or episode.
Episode 1
Queen Mary, unsure who to trust, tests her brother James to ensure his loyalty after hearing of his meeting with John Knox. Queen Elizabeth agrees to help Lord Darnley, in an attempt to sabotage the powerful suitor’s relationship with Mary.
Directed by Stuart GillardWritten by Drew Lindo, Wendy RissGuest stars Rose Williams
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Episode 2
Queen Mary discovers there is a leak amongst her advisors and sets out to uncover the traitor. Queen Elizabeth enlists Narcisse to further her quest for supremacy. Catherine takes desperate measures to regain some of the power she has lost.
Directed by Fred GerberWritten by Patricia Carr, Lara OlsenGuest stars Claire Hunter, Rose Williams, Adam Maros
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Episode 3
Gideon shows Mary what life could be like if she chose love over country. Catherine fights to cover King Charles' increasingly erratic behavior, while Claude finds an enemy in her sister Leeza.
Directed by Charles BinaméWritten by Laurie McCarthy, April BlairGuest stars Claire Hunter, Sofia Banzhaf, Rose Williams, Kyle Gatehouse
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Episode 4
When Lord Darnley surprises Mary with a visit in Scotland, Mary sees a glimmer of a union that could be more than just political. Elizabeth fights to gain allies in her favor and Catherine must work to get Claude back on track by finding her a new husband.
Directed by Fred GerberWritten by John J. Sakmar, Kerry LenhartGuest stars Christy Bruce, Claire Hunter, Sofia Banzhaf, Jonathan Keltz, Rose Williams, Derek Carroll
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Episode 5
In order to get Mary to agree to a marriage, Lord Darnley must demonstrate his loyalty when she voices her concerns about his true intentions. Catherine and Narcisse work to repair King Charles' reputation after rumors spread about his strange behavior and threaten the throne.
Directed by Michael McGowanWritten by Robert D. DotyGuest stars Claire Hunter, Jonathan Keltz, Rose Williams
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Episode 6
Mary must deal with the political repercussions of a potential marriage to Lord Darnley and King Charles disappears, leaving Catherine to pick up the pieces. Elizabeth comes to Gideon's aid, while Claude receives an interesting proposition.
Directed by Megan FollowsWritten by Drew Lindo, Wendy RissGuest stars Jonathan Keltz, Rose Williams, Kaleb Horn
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Episode 7
When Darnley gets a surprise visitor, his marriage to Mary hangs in the balance. Elizabeth learns her attempt to stop Mary backfired. Meanwhile, Catherine and Narcisse find King Charles and must convince him to return to the castle.
Directed by Lee RoseWritten by Kamran Pasha, Chris AtwoodGuest stars Ann Pirvu
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Episode 8
As Mary’s upcoming wedding looms, a terrible tragedy pushes Mary and Darnley apart, forcing Mary to enlist in Catherine’s help. Elizabeth encounters a traitor to Spain, who petitions her to support an expedition to the New World.
Directed by Fred GerberWritten by Bo Yeon Kim, Erika LippoldtGuest stars Claire Hunter, Rose Williams, Ann Pirvu
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Episode 9
Mary and Darnley wed in a lavish affair, which proves to be a successful decision in regards to her political standing. James makes an interesting discovery about Greer, while Elizabeth frantically tries to salvage England’s power.
Directed by Andy MikitaWritten by Laurie McCarthy, April BlairGuest stars Claire Hunter
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Episode 10
Mary contemplates how to take over the English throne; Elizabeth struggles to find an appropriate suitor to marry. James gets caught up in a scheme orchestrated by John Knox.
Directed by Dawn WilkinsonWritten by John J. Sakmar, Kerry LenhartGuest stars Nick Slater, Steve Byers, Ann Pirvu
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Episode 11
Mary and Darnley are at odds as their plan to seize England is put into action. Elizabeth is conflicted about her feelings for Gideon. Catherine's son Henri tries to claim the throne from Charles.
Directed by Deborah ChowWritten by Wendy RissGuest stars Nick Slater, Rose Williams, Steve Byers, Ann Pirvu
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Episode 12
After a tragic earthquake hits Scotland, Mary must face John Knox amidst claims that she isn't coming to the aid of her people. Elizabeth takes drastic measures after she is discovered with Gideon, while Charles makes a decision that backfires.
Directed by Norma BaileyWritten by Patricia Carr, Lara OlsenGuest stars Nick Slater, Rose Williams, Ann Pirvu, Clint Butler
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Episode 13
Darnley teams up with John Knox to strip Mary of her throne, which will leave a close friend of Mary's dead. Elizabeth must banish Gideon from court at the request of her future husband, while Charles takes a bold stance against his brother Henri.
Directed by Megan FollowsWritten by John J. Sakmar, Kenny LenhartGuest stars Nick Slater, Steve Byers, Ann Pirvu
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Episode 14
Mary pursues justice by launching a counterattack on her conspirators. Elizabeth suffers a major setback, and it turns her world upside down.
Directed by Andy MikitaWritten by April Blair, Robert D. DotyGuest stars Nick Slater, Rose Williams, Steve Byers, Ann Pirvu
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Episode 15
Mary’s life hangs in the balance — Childbirth threatens to take Mary’s life, which leaves her and her unborn child’s safety in jeopardy. Elizabeth discovers that someone in her inner circle was the cause of the death of someone close to her.
Directed by Charles BinaméWritten by Drew Lindo, Wendy RissGuest stars Nick Slater, Rose Williams, Ann Pirvu
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Episode 16
In the series finale, Mary changes the course of history with a decision she makes, and her perilous move for survival causes her to have a stunning realization. Meanwhile, Elizabeth steadies herself for war and becomes the instigator in Mary's demise.
Directed by Holly DaleWritten by Laurie McCarthy, April BlairGuest stars Toby Regbo, Nick Slater, Rose Williams, Steve Byers, Rebecca Liddiard, Ann Pirvu
Where to watch ReignEpisode information updated Jul 22, 2026
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