 To create the Ghost Riders voice, sound designer  Don Davis (I) (qv) recorded all of Nicolas Cage (qv)s lines as  the Ghost Rider, and then filtered them through three different  kinds of animal growls (played backwards, covering three separate  frequencies) and then played them through a mechanical volumizer,  before finally giving them a fiery crackle. Director  Mark Steven Johnson (qv) compared it to "a deep, demonic,  mechanical lions roar" and says that "one thing is for sure, his  voice will shake the theatre!"