<Tr> <Td_colspan="5"> Sebastien Valet, "La Bête du Gévaudan", or "the Beast", is the most notorious, fearsome and famous werewolf in history . Sebastien was a super-powered, beastly werewolf who terrorized the French province of Gévaudan in the 18th century, killing scores of people until he was finally killed by his sister, Marie - Jeanne Argent in 1767 . In the present, Sebastien is gradually resurrected by the Dread Doctors by binding his essence to a vessel, Mason Hewitt, and is the main antagonist of Season 5B . <P> Sebastien was born an antisocial and unrepentant sociopath . In 1760, Sebastien was a soldier alongside his faithful companion Marcel, and fought against the British in the French territory of Canada . One rainy night, whilst he and Marcel were evading the British, Sebastien fell face - forward into a puddle and unintentionally drank from it . The water - filled hole was a wolf's footprint . Sebastien, as a result of his disturbed persona, became a demonic werewolf . Overtime, he started killing, driven to simply kill whoever and whatever came across his path . His friend Marcel also became aware of his carnage, but steadfastly remained his ally, covering for him . Soon Sebastien was mentioned with fear throughout Gévaudan, becoming known as "La Bête". </P> <P> In 1764, Sebastien and Marcel return to town entering the local pub where all are talking the Beast and he reunites with his sister, Marie - Jeanne . Sebastien urges his sister to lead the hunting party for La Bête, which she eventually accepts after a little boy, the innkeeper's son is found dead by a man, Henri . Later at night, Marie - Jeanne's hunting party is slaughtered by La Bête one by one, but Marie - Jeanne is saved by Henri via a mountain ash barrier . Later on, Marie - Jeanne proposes a toast to honor the dead . Sebastien plays along, but he and Marcel uncover the spiked wolfsbane in Marie - Jeanne's mead . Sebastien splutters and involuntarily starts to shapeshift with eyes glowing blue . Sebastien unperturbedly waits as his sister walks over to him, having discovered his secret . A tearful Marie - Jeanne tells him he is a monster . Sebastien responds he's a beast, "the Beast" to his sister, that he'll kill anyone who crosses his path, because it is what he is . Sebastien gives his sister a kiss to the forehead, tells her she won't go up against him because they're family . Three years later, Marie - Jeanne tracks her brother down . Sebastien gives chase, attempts to kill her in his werewolf shape, but Marie - Jeanne reveals the pike hidden underneath the snow and impales the Beast . Back in human form, Sebastien is unconcerned with his injury, confident he'll heal from it and he will be remembered by history, that everyone will speak his name . Marie - Jeanne responds no one will remember his name . Affronted, Sebastien realizes she intends to invoke "Damnatio Memoriae" on his name . Suddenly, Sebastien realizes he's not healing but he's dying . Marie - Jeanne reveals the pike is mystical, was forged with their blood . In the Beast's dying moments, Marie - Jeanne tells Sebastien everyone will remember him, "but only as a Beast ." Sebastien dies . </P> <P> During the Dread Doctors' reign on Beacon Hills, they work on perfecting the process of reviving Sebastien Valet . Using the teenage chimera Mason as a host, they produce an engineered version of Sebastien's demonic Wolf form which Mason sporadically transforms into under the Doctors' guidance as it kills its way throughout Beacon County . The Beast gradually remembers its former incarnation, nurtured by the Dread Doctors' actions . In "The Beast of Beacon Hills", the process fully completes, with Mason being enveloped by Sebastien's essence, with Sebastien himself completely reviving once he shapeshifts back from the Beast shape . Mason Hewitt now only exists as memory within Sebastien's form . </P> <P> In "Apotheosis", the resurrected Beast of Gévaudan accesses Mason's memory and uses his vessel's persona to adapt to the 20th century . Having killed the Dread Doctors, but aware the Surgeon is still partially alive, he looks for the surviving para-scientist, becoming aware he took possession of the only weapon that's capable of killing him, the Pike . He finds the Surgeon, whose face is horribly ravaged from his centuries' work but recognizes him as Marcel, his old comrade . Sebastien is disaffected by Marcel's centuries of twisted actions to bring him back, only demanding the location of the Pike . Marcel, in his dying moments, tells him the Argents took the weapon . Sebastien wreaks havoc throughout Beacon Hills searching for the Argents and the Pike, threatening Stilinski at the Sheriff's station, mauling both Lydia and Hayden, fighting ferociously against Parrish, the Argents and disabling Theo Raeken attempting to steal his power in the process . Sebastien finally comes face to face with Liam and Scott, and politely asks the Pike back . The Alpha and Beta state they just want Mason . Sebastien states he doesn't know where to begin, but states that Mason is gone anyway . The two werewolves take Sebastien on with all their might: Sebastien easily overpowers them whilst mocking them for not fighting with a killer instinct . He's about to kill Scott, but he unintentionally taps into Scott's memories, seeing images of Allison Argent . Sebastien confusedly hesitates, mistaking Allison for his sister Marie - Jeanne, allowing Scott escapes his grip . Right then, Lydia and Kira arrive: Sebastien shifts into the Beast then moves to kill them . Lydia Screams out Mason's name in her banshee voice, powerful sound waves striking the Beast . The power reverses the process, allowing Mason to separate from the Beast . Having been stripped of a physical body, the Beast now only exists as a shadow . Parrish arrives, catching and holding the Beast's essence captive . Scott then takes the opportunity to take the sword / cane and spears the Beast's spirit with the weapon, the shadow dissipating vanquishing Sebastien Valet, the Beast of Gévaudan once again . </P> <P> Having killed close to 500 people, Sebastien Valet is a born monster, arrogant, diabolical, vain and boasting of his immense power, entitled in being the "famous and feared Beast of Gévaudan". He has no emotions, no regard for any human life, not even those of his sister and Marcel and kills for the sake of killing, even his family, all so to carve himself in history . Sebastien's werewolf ability is the most powerful seen so far, surpassing even Peter's Alpha capabilities, Deucalion's as the Alpha Pack leader and those of Parrish, a hellhound: his strength, speed, durability and healing all extremely heightened, and completely indestructible due to being a sociopath relishing in his carnage . He is fully vulnerable only to the mystical Pike forged by his sister . When Sebastien shapeshifts, he is enveloped in dark energy and his clothes assimilate as part of his transformation . </P> </Td> </Tr> <P> Sebastien was born an antisocial and unrepentant sociopath . In 1760, Sebastien was a soldier alongside his faithful companion Marcel, and fought against the British in the French territory of Canada . One rainy night, whilst he and Marcel were evading the British, Sebastien fell face - forward into a puddle and unintentionally drank from it . The water - filled hole was a wolf's footprint . Sebastien, as a result of his disturbed persona, became a demonic werewolf . Overtime, he started killing, driven to simply kill whoever and whatever came across his path . His friend Marcel also became aware of his carnage, but steadfastly remained his ally, covering for him . Soon Sebastien was mentioned with fear throughout Gévaudan, becoming known as "La Bête". </P> <P> In 1764, Sebastien and Marcel return to town entering the local pub where all are talking the Beast and he reunites with his sister, Marie - Jeanne . Sebastien urges his sister to lead the hunting party for La Bête, which she eventually accepts after a little boy, the innkeeper's son is found dead by a man, Henri . Later at night, Marie - Jeanne's hunting party is slaughtered by La Bête one by one, but Marie - Jeanne is saved by Henri via a mountain ash barrier . Later on, Marie - Jeanne proposes a toast to honor the dead . Sebastien plays along, but he and Marcel uncover the spiked wolfsbane in Marie - Jeanne's mead . Sebastien splutters and involuntarily starts to shapeshift with eyes glowing blue . Sebastien unperturbedly waits as his sister walks over to him, having discovered his secret . A tearful Marie - Jeanne tells him he is a monster . Sebastien responds he's a beast, "the Beast" to his sister, that he'll kill anyone who crosses his path, because it is what he is . Sebastien gives his sister a kiss to the forehead, tells her she won't go up against him because they're family . Three years later, Marie - Jeanne tracks her brother down . Sebastien gives chase, attempts to kill her in his werewolf shape, but Marie - Jeanne reveals the pike hidden underneath the snow and impales the Beast . Back in human form, Sebastien is unconcerned with his injury, confident he'll heal from it and he will be remembered by history, that everyone will speak his name . Marie - Jeanne responds no one will remember his name . Affronted, Sebastien realizes she intends to invoke "Damnatio Memoriae" on his name . Suddenly, Sebastien realizes he's not healing but he's dying . Marie - Jeanne reveals the pike is mystical, was forged with their blood . In the Beast's dying moments, Marie - Jeanne tells Sebastien everyone will remember him, "but only as a Beast ." Sebastien dies . </P> <P> During the Dread Doctors' reign on Beacon Hills, they work on perfecting the process of reviving Sebastien Valet . Using the teenage chimera Mason as a host, they produce an engineered version of Sebastien's demonic Wolf form which Mason sporadically transforms into under the Doctors' guidance as it kills its way throughout Beacon County . The Beast gradually remembers its former incarnation, nurtured by the Dread Doctors' actions . In "The Beast of Beacon Hills", the process fully completes, with Mason being enveloped by Sebastien's essence, with Sebastien himself completely reviving once he shapeshifts back from the Beast shape . Mason Hewitt now only exists as memory within Sebastien's form . </P>

When does mason turn back into a human