That's two for each enemy.
Both enemies will only appear in ice levels.
Well here's how they are going to behave.
Sneaky snowman will be like weeping angel. If you are not looking at it, it will snatch her and engage in sex. This enemy can't be killed and only be stunned by grenade for some time.
Ice mole will be moving under the ground in which state it can't be hurt. Once it's close enough it will come out, attack Hailey and go back to the ground. It will engage her once she is knocked. This enemy is also can't be killed only stunned with kick or pickaxe.