Drowned

"They're not alive, y'know. You came to this deserted rock to find yer friends but they're dead...may not look it from 'ere but there's no life in 'em anymore, better to pack up and go before ye join 'em!"

— Captain Greysword, warning new arrivals

Drowned are the horribly product of a Necromancer-Water Adept spell that completely kills a target before reanimating them as a water-logged husk to control.