Index of Fiend
- Alkilith
- Amnizu
- Arcanaloth
- Armanite
- Babau
- Balor
- Barbed Devil
- Barghest
- Barlgura
- Bearded Devil
- Black Abishai
- Blue Abishai
- Bone Devil
- Bulezau
- Cambion
- Canoloth
- Chain Devil
- Chasme
- Demon Cohort
- Dhergoloth
- Draegloth
- Dretch
- Dybbuk
- Erinyes (Rope of Entanglement)
- Erinyes
- Fiendish Spirit (Demon)
- Fiendish Spirit (Devil)
- Fiendish Spirit
- Fiendish Spirit (Yugoloth)
- Flind
- Glabrezu
- Gnoll Fang of Yeenoghu
- Goristro
- Green Abishai
- Hell Hound
- Hezrou
- Horned Devil
- Howler
- Hydroloth
- Ice Devil
- Imp
- Incubus
- Larva
- Lemure
- Manes
- Marilith
- Maurezhi
- Maw Demon
- Merregon
- Merrenoloth
- Mezzoloth
- Molydeus
- Nabassu
- Nalfeshnee
- Narzugon
- Night Hag (Coven)
- Night Hag
- Nightmare
- Nupperibo
- Nycaloth
- Oinoloth
- Orthon
- Otherworldly Steed (Fiend)
- Pit Fiend
- Quasit
- Rakshasa
- Red Abishai
- Rutterkin
- Shadow Demon
- Shoosuva
- Sibriex
- Spined Devil
- Stench Kow
- Succubus
- Tanarukk
- Ultroloth
- Vargouille
- Vrock
- Wastrilith
- White Abishai
- Yagnoloth
- Yochlol