When asked by a fan of how he might have received the role, Clarke honestly admitted: Another recall took place and he subsequently received a screen test with then 10-year-old Ellie Darcey-Alden (who would be cast as young Lily Evans) at Leavesden Studios 'as well as an associated costume, hair and makeup meeting.' In February, he and Ellie were notified they had received their respective parts. During the process, the children were asked to improvise short conversations. On 25 January 2010, he was called back at Pinewood Studios where he met director David Yates and worked with a number of other potentials for the parts of young James Potter, Sirius Black, Severus Snape and Lily Evans. Clarke auditioned for the parts of either young James Potter or young Snape sometime in late 2009 to early 2010. Then 13-years-old, a casting director visited Latymer Upper School in which Clarke was in attendance at the time, and invited a selection of students a chance to attend an open casting call.

However, as much as he would love to play Snape, he doesn’t think he’s right for the part, he thinks he’s better suited for Sirius, if the opportunity ever presented itself.Clarke made his film debut in the commercially successful Harry Potter and the Deathly Hallows: Part 2 when it was announced in late 2010 that he had been cast as the younger version of Severus Snape, played by fellow late British veteran Alan Rickman as an adult in all eight films and Alec Hopkins as a teenager in 2007's Harry Potter and the Order of the Phoenix, respectively.

Also, like most HP fans, Harington can’t decide if he prefers Prisoner of Azkaban or Goblet of Fire, but he can decide which character he would play in a prequel, and that is Severus Snape. According to Harington, he believes Jon Snow is a Hufflepuff, but personally he is a Gryffindor. Harington attended ACE Comic Con recently and during his interview he discussed his move to the Marvel universe, as well as his favorite fandoms and Harry Potter just so happens to be one of his favorites. Harington is best known for slaying dragons on Game of Thrones, and now that the show has come to an end he is moving on to other projects, such as being cast as a character in the Marvel universe in the upcoming film, Eternals. Kit Harington wowed everyone with his performance as Jon Snow, and now he wants to portray Severus Snape.

Young snape