Mr. Twiddle

Harry Twiddle, more commonly known as Mr. Twiddle is the zoo keeper in the Wally Gator shorts of The Hanna-Barbera New Cartoon Series. He was voiced by Don Messick.

Harvey Birdman
In "SPF" he's sued by Ding-a-Ling for using a porn website with Ding-a-Ling's name in it.