Adigeon
- Appearance: Mammalian (ENT Novel: The Good That Men Do)
- Averaging three-plus meters tall (ENT Novel: The Good That Men Do)
- Lidless, side-mounted eyes (ENT Novel: The Good That Men Do)
- Feather-like hair (ENT Novel: The Good That Men Do)
- Skin-tone ranges from mottled-gray to deep brown or purple (ENT Novel: The Good That Men Do)
- Vertical mouth with gill-like flaps in lieu of lips (ENT Novel: The Good That Men Do)
- Large bat-like wings along arms; layers of membranous flaps over striated muscles (ENT Novel: The Good That Men Do)
- Long, slender fingers at wingtips (ENT Novel: The Good That Men Do)
- Homeworld: Adigeon Prime
- Capable of flight on their homeworld due to low gravity, likely not elsewhere
- Cultural notes
- Local term for surgeon properly (or possibly inaccurately) translated as "Carver" (ENT Novel: The Good That Men Do)
- "Selb dakkiwso" term for some short amount of time (ENT Novel: The Good That Men Do)