Raptors on version 0.12 or so are another one that lower Sanity when you are playing the version where he is added in the Fallen Temple area in the swamp.
He looks like a feral, anthro raptor that does not talk, he tends to go for your HP as the damage type most often, also, even with my appareance at 10, which is what i set mine to each time i do a new game, my tease can miss him, i think his speed might be around 20 or so, maybe someone knows how much speed or apparence is needed to hit him most of the time? And the lizardess's father is in there as well, but he might be one of the characters in the lizardman contents to have new stuffs added in the future updates.