A normally human legal clerk in the undead legal firm of Slant, Morecombe, and Honeyplace.
Having long ago despaired of promotion or a partnership, (it's hard to fill dead men's shoes, when the dead men are not only already filling them, but also continuing to work as lawyers) he does what he can, and receives perks from his understanding seniors in compensation, like opera tickets which would otherwise be beyond his income. As his mother represents the totality of women he feels he knows well enough to ask, she usually escorts him to the Opera, and provides exquisite embarrassment by making remarks such as the songs aren't a patch on what you get at the music hall, and why does it all have to be in foreign, anyway?
During one such memorable trip to the Opera, Henry discovers the truth as to who his father really was... and it wasn't Mr Lawsy the eel-juggler, which is what his mother (and foster-father?) told him in order to save face...