Elton John is in talks to join the cast of Kingsman: The Golden Circle, the sequel to the 2014 action spy film.

If a deal is able to be reached, John would join a cast that includes returning star Taron Egerton and new cast members Julianne Moore, Halle Berry and Pedro Pascal, among others.

Mark Strong is also set to return, and the production has strongly hinted that Colin Firth, who perished in the first installment, will be coming back as well.

Kingsman: The Golden Circle continues the adventures of a wayward tough (Egerton) from the wrong side of London who was taken in and turned into the best and brightest of British secret operatives.

The film is set to begin principal photography in London with Matthew Vaughn in the director's seat. He also co-wrote the script with Jane Goldman.