The cast who first appeared in the shared world Cosmic Horror series that is The Never Mythos. Characters who first appeared in The Kindness of Devils can be found here.
Unmarked spoilers abound.
- Seers note Eliza Cortly, Michael Seer, Daniel Hopper, Vicente Galvelas, Julio, Elazar, Aisling Vallee, Zyra Nyson
- Humans note Christian Vade, Katrina Summerwood, Alessa Hopper, Mathilda Summerwood, Joe Candy, Crystal Hopper, Welter Faye, Edison, Helen Valentine, Eliphas Coyte, Stefano de Cortly, Henri Barrows, Mr. Bright, Harold Rye, Reinhard Heydrich, Dietrich Boehmer, Helga Boehmer, Dr. Kurt Sindermann, Josef Mengele
- Eldritch Beings note The Passenger, the Mollusc, the Needler, the Priest, the Shadows' Consultant, the Blind, the Writhe, the Scrambler, the Hyena, "It", Spoiler Character, Spoiler Character, "Vladik Cardinous" the Ending Eye/Ix Nagoth, Xol Malig, Masque
- Others note Adam, Saviri, Byron, the Daydreamers, the Gangrene Man