The Frigid Hunter is one of the different variants of Zombies. Hunters who used to hunt animals with their rifles, only to find while exploring the woods that this time they were the prey. A lot of hunters disappeared but most of them apparentaly ran out of bullets in the worst situation, only to be turned into a different type of hunter. It has a similar, if not identical, walking animation to the Festering Corpse. Both appear to have a form of speed handicap in that they are not able to outrun a walking player, this does however change at night, at least for the Frigid Hunter as they run at normal speed of most zombies.
The Frigid Hunter, Frozen Lumberjack and Frostbitten Worker all seem to share similar traits when it comes to health. As of Alpha 6, all snow zombies appeared to have the same amount of health as a Bloated Walker, requiring 2 pistol headshots to bring them down.
Probably the most problematic snow zombie in all times of the day, because it's shambling head movement during the day makes it slightly harder to aim headshots, and it still requires two shots from a pistol. And at night, much like it's female counterpart, the Frostbitten Worker, this zombie becomes extra-dangerous, since it hits as hard as a Bloated Walker with as much running speed as the standard zombie!