WMG / The Time Machine (2002)

The Uber Morlock is Jeremy Irons.
Of course he is played by Jeremy Irons, but I like to think the character himself really is the actor Jeremy Irons who miraculously survived underground and evolved into the cerebrally enhanced Morlock leader 800,000 years hence.
http://tvtropes.org/pmwiki/pmwiki.php/WMG/TheTimeMachine2002