Mike Tyson and William Shatner are among the big name stars which will be attending the London Film and Comic Con, taking place from July 17-18th, at Earl's Court.
Tyson, who featured in hit comedy The Hangover, will appear at the London venue on July 18th, when he will sign autographs and take part in a photo session.
Shatner, who is best known for his role in Star Trek, will appear on both days and is planning to give a talk on July 18th.
At the event, which is organised by Showmasters, members of the public will be allowed to mingle with 50 stars from the likes of Twilight, Star Wars, Doctor Who, Star Trek, and many other major blockbuster films and cult TV series.
Sean Young, from Blade Runner, Dune and Wall Street, as well as the Cast of Being Human, will also appear, the event organisers have announced.