Demons in general can be of all sorts & shapes. So with that in mind, I've decided to track down some Nurglings for use as Imps. I may just have a blister of them stashed away someplace for use in my Carnival of Chaos for Mordhiem.
Then I had some metal GW figures. I think they are Blue or Pink Horrors. However the shifting skins & changing forms drew me as something Demon like. So I painted several for use as Demons in Frostgrave.
I opted to keep their skins shiny, to represent slick slimy skin. I was quite taken by the newer form trying to shed the outer skin, quite interesting models.
We don't currently have a Summoner Wizard in the campaign, though its a matter of time before someone goes & summons a demon.
I have some more Zombicide Black Plague Zombies drying from the dip. Should have them finished & posted tomorrow eve.