Once appeared as
himself in
Space Ghost Coast To Coast.
Well,
sort of.
He was a "
space pirate" who took over the
airwaves for the
SGC2C show from his
mother's basement.
Ended with Andy listing his
demands, the last one of which was:
"..and I want the show to have a
real ending for once and not just cut off in the-" (show ends)