There are many different underrated horror villains from movies that never got the recognition it was deserved.
There are even top ten lists about it from Jerry from Stepdad to Victor Crowley from Hatchet; there’s just so many undervalued horror villains.
One of my favorite underrated horror villains is Harry Warden the mining killer from My Bloody Valentine. Released in 1981 My Bloody Valentine has the similar theme of Halloween where the killer only comes out on said specific Holiday. This one is Valentine’s Day and yes it gets quite Bloody but it’s also very cheesy and does have a bit of a scare jump factor to it. Definitely check it out.