Evanna Lynch cheered on by Harry Potter stars Emma Watson and Tom Felton as she reaches Dancing with the Stars final

JK Rowling and the cast of Harry Potter threw their support behind Evanna Lynch in a series of video messages ahead of the Dancing with the Stars final.

Lynch, who played Luna Lovegood in the wizarding franchise, reached the final of the US show with her partner Keo Motsepe.

Rowling cheered on the actress, throwing her hands in the air and shouting: “Best of luck, Evana. Hope you win!”

Emma Watson, who played Hermione Granger, filmed a message telling her former co-star to “kill it tonight, girl”.

She said: “Evana! You are in the final! Can we just say that again? You are in the final! I am so proud of you.”

Tom Felton, who played Draco Malfoy, joked that he has put their “Hogwarts differences aside” to support her on the show.

Neville Longbottom star Matthew Lewis said her place in the final was “mind blowing” while Katie Leung who played Cho said it has been “such a privilege to be able to watch [her] perform”.

Bonnie Wright who played Ginnie Weasley and her onscreen brother James Phelps who played George also reached out with good luck messages.

Lynch’s father Donal also made a plea to ex-pats in America to vote for his daughter on the ABC show as she went up against US model Alexis Ren, US radio star Bobby Bones and actor Milo Manhiem in Monday night’s final.

Despite the messages of support, Lynch was unable to take home the mirrorball trophy which went to Bones.

Lynch thanked her fans for all of their support, saying it “meant the world”.