Tom Riddle in Quirinus Quirrell's body
|Full name|| Tom Morfin Riddle|
|Aliases|| Alexander Chernyshov, Jeremy Jaffe, David Monroe, Quirinus Quirrell, Lord Voldemort (also You-Know-Who, He-Who-Must-Not-Be-Named)|
|Born|| 31 December, 1926|
|Relatives|| Harry Potter (personality imprint)|
|Personal items||Crown of the Serpent, Goblet of Fire (canon), Philosopher's Stone, Resurrection Stone (canon)|
|In the canon|
|Wikia • Wikipedia|
Tom Riddle is a British dark wizard. He is best known as the infamous Lord Voldemort who led a series of terror attacks on Magical Britain in the 1970s in what is known as the Wizarding War. He then disappeared for almost a decade after his own attack on infant wizard Harry Potter backfired on 31 October, 1981, a day now celebrated as Harry Potter Day.
Tom Riddle assumed a number of false identities over the years and even rose as one of Voldemort's strongest opponents during the Wizarding War under the stolen name of David Monroe. In 1991-1992, Riddle taught at Hogwarts as Professor Quirrell in a scheme to steal the Philosopher's Stone. In June 1992 he defeated Albus Dumbledore before being himself defeated by Harry Potter.
Riddle studies at Hogwarts in Slytherin house. During his time there, he opens the legendary Chamber of Secrets (canon) in which Salazar Slytherin's basilisk (canon) gives him access to Slytherin's secret lore. In 1943, Riddle uses the basilisk to kill Abigail Myrtle in order to make his first horcrux (canon).
Before he kills Myrtle, Riddle begs Albus Dumbledore to introduce him to Nicholas Flamel in order to become his apprentice and learn to make the Philosopher's Stone, but Dumbledore refuses. In 1992, Riddle will claim that this episode was his "last attempt to be a good person" and that Dumbledore's refusal pushed him towards his evil life choices and Myrtle's murder.
Riddle will also claim that at age 13, he wanted to be the next Dark Lord and made a list of rule he would follow so as not to make the same mistakes as past Dark Lords.
Still according to Riddle, he studied martial arts at a muggle dojo in Asia, achieving 6th dan. In this dojo he also learns the attitude of losing which he teaches to Harry in Defence class in September 1991. In 1969, he would come back as Voldemort and torture and kill the students and the master of the dojo, an event known as the Oni Affair by the Department of International Magical Cooperation (canon).
Attack on Godric's Hollow and aftermathEdit
As Quirinus QuirrellEdit
Sometime around March 1991, Quirinus Quirrell finds one of Riddle's horcruxes. Riddle then possesses Quirrell's body and assumes his identity.
In a scheme to obtain the Philosopher's Stone owned by Perenelle Flamel, Riddle gets hired as Hogwarts' Defence Against the Dark Arts teacher for the next school year. He then makes Flamel believe that he can find the Stone anywhere she hides it, so she instead leaves it to Dumbledore to protect in Hogwarts using the Mirror of Perfect Reflection.
While going as Professor Quirrell, Riddle leaves hints that he is his former, Wizarding-War-hero identity David Monroe in disguise.
Riddle quickly becomes Harry's mentor. Later in the school year, he hears Sybill Trelawney's prophecy about Harry ending the world and resolves to counteract it "at every possible point of intervention", including by killing Harry.