If you think Dan sounds almost exactly like Scooter the cheeful caveman (well, other than the attitude) or Snot (or Booger, for that matter), you'd be right.
What Could Have Been: The series was initially envisioned as a live-action, R-rated sitcom (with HBO or [adult swim] the most likely network for it).
This show reuintes actor Curtis Armstrong with animator Bill Kopp, the show's director. The two had previously worked together on Eek! The Cat, which Kopp co-created and in which Armstrong provided the voice for Scooter the Caveman.