Patton Oswalt is a long-time self-confirmed D&D player. Besides that, he jokes about comics, pop culture, and even Mesopotamian cuneiform script.
Mr. Oswalt in his native environment, approach with caution
Below are the three bits he did for the show Reno 911. Now the guy who is wearing the helmet and is shot by the arrow is my old buddy Jack Conway, who used to be a customer in a comic store I ran a long time ago. It's really funny to see Jack in these segments, and he assures me that Patton really knows his D&D. Enjoy!
I believe this is the series that has the three segments.
Patton's book, which, unlike Snooky's, was actually written by him!
Patton telling jokes, which is what he does when he's not playing D&D or reading comics.
A related bit from a SCA sort of event.