Berrenta
MOD
Bejeweled (she/her)
(Ten years in the joint)
Relationship Status: I made a point to burn all of the photographs
Total posts: 2

While the description of Evil Twin doesn't mean exclusive to actual evil twins, some of the examples in there fit other evil duplicate tropes like Evil Knockoff, Criminal Doppelgänger and Evil Doppelgänger.