Declan Farlas:
Does Gloomhaven have any setting-specific gods?
I think there's one reference to a Blood God on one of the cards. You fight a lot of eldritch monstrosities. There's even a paladin-like character you unlock in the game, but there's not many references to gods.
The Gloomhaven chartacters, at least as I've seen, don't really have anything like a cleric. There's other "support" classes - a bard, a doctor, a gadgeteer, etc, but the magic seems to mostly arcane and artificier rather than divine.