One of the members of the Choir which is something to do with the webcomic Aberdork. Thaddeus like the other angels have unique traits that make him useful for missions. Originally a Librarian, he met his end by being crushed by bookshelves. He walks with a limb and occasionally a cane, even when he's not wearing a mortal disguise.

In particular to his abilities, he's mostly good for reconnaissance. He can passively read up to four people's surface thoughts (only if they think in words, and most people don't think in full sentences. Can't comprehend images which is a forte reserved mostly for any demonic counterparts) and his ability to summon the dead to converse with. The limitation to that is a bit visually obvious on which dead he's able to talk to. He's not the strongest in the choir, and relies on the team while in turn they rely on his direction (and misdirection) for support.

Thaddeus isn't his real name either, by all members of the choir are known by assigned monikers. He's as creepy as he looks as the drawing makes him to be, He's worse in his mortal disguise as he can only speak in tongues. Without that particular book by him even in his angelic form his body will display the indecipherable runes, inter-spaced by his own thoughts and memories. Despite his tendency to lie frequently and violate the privacy of others (and knowing how it feels to himself) I too, find it hard that he's actually one of the good guys.