The characters of XKCD are an integral part of both the story-telling aspect of the comic and the humor, jokes frequently deriving from their individual characteristics.
The comic has no real main character as the characters vary per strip.
“Black hat guy Black Hat guy is a character in xkcd, identified by his signature black hat. His...Hat guy
“Robert'); DROP TABLE Students;, or just Little Bobby Tables is a child, first appearing in...Robert