Hildy

Hildy is a minor character in Origin Stories introduced in Killerjoy. She is Proctor Allen's assistant.

Killerjoy
Hildy only appears in one scene in Killerjoy long enough to meet with Attle Bowman and introduce him to Proctor Allen and Griffin Marsh. She has all of one line and disappears just as quickly as she came.

It can be assumed she knows Attle's real name and who his family is simply because Allen knows.