Professor Snape Severus Snape , also referred to as Professor Snape and The Half - blood Prince is a minifigure from Harry Potter introduced the 2001 . He taught Potions at Hogwarts , and was head of Slytherin House . He is originally a major antagonist of the series , however in the final installment of the franchise , Harry Potter and the Deathly Hallows , he revealed where his true loyalties lay . Description . To date , Professor Snape has appeared as five different variations : In " The Philosopher ' s Stone " and " The Chamber of Secrets " sets , Snape appears with a glow - in - the dark coloured head , and grey hands . He is clothed in black robes , with a printed dark purple pattern on the torso and legs , and has a black cape . Snape ' s hair piece is black , shoulder length and parted in the middle . In 4733 The Dueling Club , Snape comes equipped with a dark grey wand . In " The Prisoner of Azkaban " , Snape ' s appearance is slightly altered , where the purple printing on Snape ' s torso and legs is more opaque but of the same design , and he retains the same head and hair pieces . In " The Order of the Phoenix " subtheme , Snape was completely redesigned to have a flesh - coloured head and hands , and a different purple printed pattern on his torso . His legs and cape were made plain black . The only piece to remain the same was Snape ' s hair piece . This was the first Snape minifigure that didn ' t have a glow - in - the dark head . In the 2010 4842 Hogwarts Castle , Snape was once again redesigned , with a different flesh - coloured head , hair , and torso piece . In the prototype version at Toy Fair showed him with a purple - printed torso , but the final version is actually black , with the same printing as the variation released under " The Order of the Phoenix " sub - theme , except with grey lines , not purple lines . Once again , Snape has plain black legs and a black cape , along with flesh - coloured hands , but comes with a hairpiece new in 2010 . In his 2010 appearance , Snape is equipped with a black wand . Boggart . While not actually Professor Snape himself , a Boggart ( a shape - shifting magical creature which takes the form of the viewer ' s worst fear ) impersonating Snape appears in 4752 Professor Lupin ' s Classroom after Neville Longbottom cast the Riddikulus charm on it , resulting in what appears to be the Professor in Neville ' s grandmother ' s clothing . The head , hair and hand pieces of this variant are consistent with the Professor Snape Minifigures appearing in " The Philosopher ' s Stone " and " The Chamber of Secrets " , but the torso and leg pieces are sand - green , and the torso has printing on it representing Neville ' s grandmother ' s clothes , which includes a picture of a stuffed cat on it . Background . Professor Severus Snape was a Death Eater who became a double agent and a member of the Order of the Phoenix , headed by Albus Dumbledore . Although many believed Snape was actually working for Voldemort , Dumbledore trusted him for reasons no one could figure out . He began teaching Potions at Hogwarts , although he always wanted the post of Defence Against the Dark Arts . As a teacher , he and Harry harbored a fierce hatred of each other . After Lord Voldemort ' s return in 1995 , Albus Dumbledore ordered him to go back to Lord Voldemort and act as a spy for him . Voldemort accepted Snape back , believing that Snape had been gathering valuable information for him at Hogwarts when he was away . In the 1995 - 1996 school year at Hogwarts , Severus remained in his post as Potions Master . In winter , Snape was appointed by Albus Dumbledore to teach Harry Potter Occlumency . In 1996 , Narcissa Malfoy , accompanied by her sister , Bellatrix Lestrange , went to Severus ' s House in Spinner ' s End . Narcissa came to ask for help , she asked in Severus could " look over " Draco . Narcissa and Severus made the Unbreakable Vow . In 1996 - 1997 school year at Hogwarts , Severus Snape was assigned the post of Defence Against the Dark Arts teacher , the job which he had been applying for since he first joined the Hogwarts staff . In Spring 1997 , several Death Eater s secretly entered Hogwarts through the Vanishing Cabinet in the Room of Requirement . They cornered Albus Dumbledore on the Astronomy Tower . Draco Malfoy was under orders from Lord Voldemort to kill Albus Dumbledore , Draco was unable to do so . Severus Snape killed Albus Dumbledore instead , cementing his position as one of Lord Voldemort ' s most trusted Death Eaters . In 1997 , Severus Snape was appointed Headmaster at Hogwarts after the Death Eaters invaded the Ministry of Magic and took control of it . In May 1998 , The Battle of Hogwarts broke out . Which resulted in Lord Voldemort killing Severus over the Elder Wand , a wand which was believed to be unbeatable . In his final moments , Harry Potter came across Snape , and Snape showed Harry memories of his past , revealing that because of his deep love of Lily Evans , Harry ' s mother , he had been acting under Albus Dumbledore ' s orders the whole time and had been protecting Harry , but because of his hatred for James Potter , Harry ' s father , Snape abused and tormented Harry throughout the time he knew him .