Yes, yes, yes, and yes! I finally have DOS's autograph. This one has been a long time dream, since he simply doesn't sign anything, and doesn't go to conventions. Oh, but I have him now!
David played Dr. Jumba Jookiba in Lilo and Stitch, and its many various spin-offs. He's been in Stargate, Murder She Wrote, Outer Limits, Star Trek: TNG, Perry Mason, MASH, Beauty and the Beast, and tons of other great shows.
He does not have an official website.