David Grafe
You may also be looking for the actor, David Graf.
David Grafe is a  color artist. He worked for DC Comics in the late 1980s and early 1990s and worked on a variety of titles including Star Trek, Superman, and Hawkman. He currently sells original graphic art on mugs, shirts, etc.... at his online store. www.zazzle.com/deyvdesign.

Star Trek credits 
 DC TNG volume 2:
 Annual #4: "A House Divided"
 "TNG Special 2" ("Out of Time" story)
 DC TOS volume 2:
 "TOS Special 1" ("The Needs of the One" story)
 "TOS Special 3" ("Echoes of Yesterday" story)
 #59: "No Compromise Part Two"
 #60: "No Compromise Part Three: The Conclusion!"
 #61: "Door in the Cage"
 #62: "The Alone"
 #63: "The Alone Part Two"
 #64: ""
 #65: "Bait... and Switch"
 #66: "Rivals Part 1"
 #67: "Rivals Part 2"
 #68: "Rivals The Conclusion"
 #69: "A Wolf... in Cheap Clothing Part One"
Grafe, David