Melissa Benoist (Carole King), Adam Dietlein (u/s Gerry Goffin), Jessica Keenan Wynn (Cynthia Weil), Ben Jacoby (Barry Mann), Paul Anthony Stewart (Don Kirshner), Nancy Opel (Genie Klein), Stephanie Martignetti (Marilyn Wald), Kerissa Arrington (Janelle Woods/Shirelle), Gabrielle Elisabeth (Little Eva/Shirelle), Kennedy Caughell (Betty), Matt Faucher (u/s Nick/Righteous Brother), Kevin Duda (Neil Sedaka/Righteous Brother/Lou Adler), Salisha Thomas (Lucille/Shirelle)