The "Sergio" is
Sergio Aragonés, the world's most honored cartoonist and one of the "usual gang of idiots" in
MAD magazine for over 45 years. The "Mark" is
Mark Evanier, writer of comic books and TV shows, blogger, convention panel host, and Sergio's collaborator on
Groo the Wanderer for more years than either will admit or can believe. They will tell you all about their partnership, about the forthcoming mini series in which Groo battles Conan the Barbarian...and anything else you want to know about.
http://www.comic-con.org/wc/wc_search_results.php?strShow=29&strRec=3193
