Peter Rooker is a drug lord who funded Dr. Thorne's research on a designer steroid that was used Peyton Westlake's body after surviving his building's explosion, turning into his current state as Darkman,He also plays the main antagonist played by Jeff Fahey in Darkman III Die Darkman Die 1996


Peyton Westlake (Arnold Vosloo) is forced to contend with corrupt businessman Peter Rooker (Jeff Fahey), who is working with a young doctor who had saved Westlake's life after he was nearly burned to death (depicted in the original film), in order to create a formula to give others the super-human strength he possesses. Westlake develops feelings for for Rooker's wife (Roxann Dawson) and young daughter.