Complex sentence: Gray is a native of the comic book hotbed of Windsor, Ontario, Canada which has produced an unusual number of comic book creators/artists including Darwyn Cooke, Jeff Lemire, Jay Fabok, and Johnny Desjardins.
Split into simpler sentences: Gray is a native of the comic book hotbed of Windsor, Ontario, Canada which has produced an unusual number of comic book creators/artists. Among those are Darwyn Cooke, Jeff Lemire, Jay Fabok, and Johnny Desjardins.