Boo Swain (alias: Gnatrat) is a Bruce Wayne (and Batman) parody created by Mark Martin. He first appeared in Gnatrat: The Dark Gnat Returns. Gnatrat is a central character in Totally Hacked! where he is initially The Fannywhacker (a Punisher parody) in the alternate peaceful reality created by Dale Evans McGillicutty's alterations to the past. At some point Dale told him about the Skwals (probably including George), although this wasn't shown onscreen.