He will be signing copies of Candy Jar's latest product - Kangazang! - as well as his own portrait photos.
You will be able to meet the much-loved actor at 10am on Saturday the 25th September 2010.
Forbidden Planet International is one of the best sci-fi, fantasy and movie shops in the UK with sixteen stores nationwide.
Colin is currently performing on stage as Inspector Morse in the stage play 'House of Ghosts'. You can find out more here.