Santorini: Hiding in the Underworld contains 17 characters:

Arachne
Cerberus
Charon
Chronus
Hades
Hecate
Hypnus
Mnemosyne
Moerae
Morpheus
Nemesis
Orpheus & Eurydice
Persephone
Phobos
Sisyphus
Tartarus
Typhon


It also contains 2 mode cards:

Nyx's Veil
Manticore's Shadow



Playing Time: 30 Minutes
Player Count: 2-4