Superman: The Animated Series 
The Hand of Fate
Written by:  ?  Story by: ?  (Damn VCR clipped the credits) 
 

    Not only is Batman dealing with some Lovecraftian references, but Superman's animated series as well.  In one episode titled the Hand of Fate, an ancient power is released from an old stone artifact.  Superman enlists the help of  Kent Nelson, better known as Dr. Fate, in defeating him.  The ancient evil has a knack for turning humans into horrid creatures.  The one thing I always disliked about the Batman and these new Superman cartoons is that most of the animation is very angular, without detail, and are all usually devoid of intricate coloring (keeping the overall color dark to set a more moody atmosphere).
    There is no real Lovecraftian references that I could pick out, but just the creature design was enough to draw some resemblences. 

 superman1.wav  Superman and Dr. Fate confront the evil force. 

 superman2.wav  Dr. Fate reveals that he has the artifact, the only thing that may banish the ancient creature and undo his magic.