Othar Tryggvassen, Gentleman Adventurer

Othar Tryggvassen is a homicidal maniac with a reputation for heroism. This reputation seems to be earned, since Sparks are his target of choice and many Sparks do cause widespread destruction. He is, however, extremely unpopular among Sparks who know the truth about him, especially the Wulfenbachs. The Baron wants to cut up his brain; Gil just wants him dead.

For whatever reason, he seems to consider Heterodynes exempt from the All Sparks Must Die rule (even stranger since he doesn't even exempt himself), and is very hot on the idea of Agatha Heterodyne becoming his new spunky girl sidekick. She herself is rather less enthusiastic.

He also has a Twitter account. It should be noted that just because he's insane doesn't mean he's stupid...

Questions and Theories

 * 1) Where did he get his conviction that all Sparks must die?
 * 2) Is he going to show up again, and when?
 * 3) What's his history with Gilgamesh Wulfenbach?
 * 4) What is that visor for, anyway?