Kerry Butler (Clio/Kira), Cheyenne Jackson (Sonny), Peter Samuel (u/s Danny Maguire/Zeus), Jackie Hoffman (Calliope/Aphrodite), Mary Testa (Melpomene/Medusa), Curtis Holbrook (Thalia/Siren/Young Danny/'80s Singer/Cyclops), Anika Larsen (Euterpe/Siren/'40s Singer/Thetis), Kenita R Miller (Erato/Siren/'40s Singer/Eros/Hera), Andre Ward (Terpsicore/Siren/'80s Singer/Hermes/Centaur)