Since his school-time Bradley is a close friend of Clive Barker. In the seventies Bradley and Clive Barker founded the progressive theatre group "Dog Company". While Barker wrote the scripts with his friend Peter Atkins (script-writer of several Hellraiser films), Bradley started acting. Bradley made it to the Hall Of Fame of movie monsters for his role as the cenobite Pinhead who he played in all eight Hellraiser movies.