Spirit / Ghost - Iskem (Moi, Wight)
Draugr / Corporeal Undead - Iskyr (Revoi, Revenant)
Vampire (Sinners) / San'layn / Memory Vampires - Iskvyr (Pyr, Vampyr)
The Gentlemen (Buffy) / Observers (Fringe) - Iskvyru (Arch, Queisc)
Dhampyr (Blade) - Iskhyr, Dhisk (Amalg, Dhampyr)
"Invited" but not in the traditional sense