Rowena MacLeod

Rowena is a villainess appearing in the CW television series Supernatural and is the main antagonist in Season 10 of the show. She is played by Ruth Connell.

Biography
Rowena is a Scottish witch seeking to re-build her power base, and is the mother of Fergus Macleod aka Crowley.

She first appears in the closing scene of "Soul Survivor," where she sits in a hotel room, quietly reading a book while two hotel employees are impaled on the ceiling above her.

Rowena next appears in "Girls, Girls, Girls," where she enters Raul's Girls and uses a hex bag to kill a demon named Raul. She then convinces two young women to accompany her out of the club and takes them to a restaurant. There, Rowena reveals she is a witch and she was banished from her coven for her extreme uses of witchcraft. In the final act, Rowena has been captured by Crowley's demons, who bring her down to Hell and imprison her in a dungeon. When Crowley enters her cell to meet with her, Rowena begins mocking him. The episode ends with a stunned Crowley asking "Mother?"

After catching up with Crowley, who still resented her for leaving him and mistreating him when he was a child, she eventually gains his trust. However, she starts plotting behind his back by framing Gerald, one of his subordinates, for being a traitor, which gets Gerald killed by Crowley. She also spies on Crowley as he goes to go meet with the Winchesters about the Mark of Cain and retrieving the First Blade. She then orders Guthrie, another one of Crowley's subordinates, to retrieve the First Blade. Afterwards, she then kills Guthrie and frames him, telling Crowley that he was betraying him.

Katja, a witch and the member of the Grand Coven, travels from Europe to the United States, in pursuit of Rowena as ordered by her superiors in the Coven. Her hunt was thwarted by Sam and Dean Winchester when Dean incinerated her in her own flaming kiln, killing her.

Rowena is present at the court and scorns a crossroad demon for demanding Crowley the credit which equals his work. She,then, suggests Crowley halve him and pin the bloody pieces to the wall of the court so that no one dares demand anything from Crowley anymore, thus not wasting the king's time, which Crowley complies.Rowena,later, reveals that Olivette, her rival and superior, the high priestess of the Grand Coven, has just resurfaced and implores Crowley to track down Olivette and coerce her to sanction her practice of magic once again on her behalf. Crowley reluctantly agrees but later, revokes the plan as he has some business with the Winchesters to exterminate Cain. Rowena is disappointed and chastises Crowley, telling him not to go but Crowley rebuffs. When Crowley returns distressed and crestfallen, double crossed by the Winchesters, Rowena is ready to leave but Crowley halts her. She berates him for being their puppet and lap dog and addresses him "their bitch".

Rowena remains vexed with Crowley and vents her frustration by ruining the court and casting shocking spells to all those who interferes her ; she hexed one of the demons to spawn a rear face. She also rebukes Crowley for denying to help her and for choosing the Winchesters over his own blood. She taunts Crowley about his existence only because of her and again, spoils his palace by casting a spell. Crowley later captures Olivette, and brings her before Rowena, much to her joy. Rowena shackles Olivette and beats her. Olivette reveals she excommunicated Rowena for having a child with a non-witch and that the Grand Coven has already devastated and weakened dedicated to the Men of Letters. She mentions that the Winchesters are the only known Men of Letters. With the assumption that the Grand Coven from which she has been hiding for centuries and which she has been fearfully groveling until now is no longer powerful and authorized, she tortures Olivette and eventually, transforms her into a hamster.

As part of her plan to defeat Dean, Rowena draws sigils and symbols in blood on her body, and appears on earth. She casts the Attack Dog Spell on a trio of teenagers, and uses them to attack Dean. When Dean successfully beats the teenagers without killing them, Rowena uses a Gaelic spell on Dean which was supposed to rip him apart, but did not since Dean bears the very powerful and ancient Mark of Cain. Dean spares her life for the sake of the hexed trio, as he knows that Rowena can only break the spells cast on them. Overwhelmed by the knowledge that even her mightiest spell cannot overpower Dean, she injures herself and reveals to Crowley that Dean attacked her in the hope of Crowley retaliating against Dean for his mother. However, Crowley ignores her, feeling unconvinced by her love for him, stating that the only reason she is clinging to him is he is being useful to her. Rowena then packs, and leaves her son's palace.

After an encounter with the Styne Family where Sam appeared to destroy the Book of the Damned in a fire, he meets with Rowena in the hope that she can find a way to reverse the Mark of Cain, since she is a very powerful witch. With a smile, she discussed the terms of an agreement with him.

Rowena stipulates that Sam has to kill Crowley in return for her decoding the book, to which Sam agrees. She mentions that an affiliate of the Grand Coven, a witch named Nadia, once wrote a codex which can help interpret the Book of the Damned. Nadia, however, was murdered by the Men of Letters, and her codex was plundered and hidden in a Werther Box which induces hallucinations and delusions to all those who attempt to open it. These illusions manipulate the victims to commit suicide, with 98 percent lethality. When Sam and Dean discover the whereabouts of the Werther Box, the former opens it which causes Dean to have hallucinations of purgatory, in which he kills a leviathan and confronts Benny.

Benny was trying to persuade Dean into puncturing himself with a shattered glass bottle, killing himself. Meanwhile, Sam is saved from Suzie, who blames him for being responsible for her death by Rowena by using a spell, who, herself, is a hallucination induced by the Werther Box. Rowena and Sam confer how to open the Werther box in order to get Nadia's codex. Rowena uses a spell to reveal the letters etched on the box which read that only by spilling the Men of Letters' blood would the hallucinations cease, and allow the box to open. Sam cuts his arm, and spills his blood into the collection bowl on the box. It doesn't work, however, since more blood is needed.

Being a hallucination that would bring about Sam's death, Rowena encourages Sam into spilling vast amounts of his blood and he almost kills himself by excessive blood loss, but Dean is freed from his hallucination by impaling Benny instead of himself. He seeks out Sam, and spills his blood with Sam, which deactivates the spell on the Werther box, and disperses Rowena. Having successfully opened the Werther box and retrieving Nadia's codex, Sam arranges a rendezvous with Rowena, and hands her the codex. As a precaution to make sure that Rowena neither goes back on her promise and abandons the search for a cure, Sam binds her with iron manacles and chains. Sam tells her to work on the codex and departs, leaving Rowena furious and enraged.

Since Rowena has not found a cure for the mark, Sam argues with her for procrastinating in deciphering the Book of the Damned using Nadia's codex, to which Rowena replies that she is an, artist and needs time for interpreting the cure for Dean. She also states that her deciphering of the codex could be expedited if she could use magic, since Sam has her in iron shackles. Sam is desperate and demands why she is stalling but Rowena denies, saying that removing the Mark of Cain would insure her life, plus her willingness to have Crowley killed. In addition, Rowena mentions that Nadia also encrypted her own codex so that no one could ever decode it, to Sam's chagrin. When Sam goes to leave, Rowena asks him to go grocery shopping.

He returns with Charlie, who is also there to help find a cure for the Mark, but Rowena is antagonistic toward Charlie, and tells Sam that she does not need an ancillary decoder. Sam retorts by revealing that Charlie wouldn't be her helper, as she would be subordinate to Charlie. Rowena is not impressed by Charlie's confidence in tech, as she has never heard of the school where Charlie learned this magic. Sam tells her that she will find the ancient spells and curses, while Charlie's tech will put it into context. When Castiel is counted in, Rowena is intrigued by him, and taunts that all their discreet and unwilling collaboration must be unbeknownst to Dean, who doesn't even know that Sam didn't destroy the book. Sam, Charlie, and Castiel make a mutual agreement on cooperating for Dean's sake.

Rowena taunts Charlie and her laptop, and Castiel enters with his favorite snack as a human, pork rinds. Charlie asks Rowena about the nun who wrote the Book of the Damned, and Rowena replies that she was a hermit nun, Agnes, and that she was incinerated at the stake by the men of the church. Rowena mentions that her and Charlie are similar, however Rowena believes Charlie has too much trust in the Winchesters. Charlie confesses that the Winchesters are like her brothers, but Rowena tells her that her loyalty would be her undoing. Because Rowena won't leave her alone, and even tried to talk her into witchcraft, Charlie tells Castiel that she has to leave for two hours, or even one, just to get away from Rowena.

When Charlie and Rowena start arguing, Castiel calls Sam to let him know that Charlie wants to leave. Sam says it is too dangerous, however, so Castiel moves Rowena to another room, and chains her there. Rowena felt that Charlie was being the dramatic one, and believed that determining a cure would go faster if Charlie accepted her help. She also mentions that Crowley is her son, which surprised Castiel. Castiel leaves her, and finds out that Charlie has left for a motel, where she is later killed by Eldon Frankenstein.