Olivia Holt as Mary Isla Winchester
Book 6 theme song:I Am Invincible by Cassadee Pope
Dylan Sprayberry as Ricky Harvelle
Book 6 theme song:Burn by Ellie Goulding
Danielle Panabaker as Kara Jones
Book 6 theme song:Disturbia by Rihanna
Sara Bareilles as Alison Holt
Book 6 theme song:History by One Direction
Madelaine Petsch as Reece Young
Book 6 theme song:Written In The Stars by Girl and The Dreamcatcher
Vanessa Morgan as Evelyn Macleod
Book 6 theme song:Salute by Little Mix
Mike Faist as Hermes Theodroropoulos
Book 6 theme song:Wake Me Up by Avicii
Jasmine Cephas-Jones as Athena Theodroropoulos
Book 6 theme song:Poetry By Dead Men by Sara Bareilles
Monica Bellucci as Persephone Theodroropoulos
Book 6 theme song:Unconditionally by Katy Perry
Nicholas Cage as Hades Theodroropoulos
Book 6 theme song:When The Booth Goes Bright by Ameliè
Marina Diamandis as Crystal
Book 6 theme song:S&M (Come On) by Rihanna
Jensen Ackles as Dean Winchester
Book 6 theme song:If I Had My Time Again by Groudhog Day The musical
Jared Padalecki as Siren
Book 6 theme song:What Comes Next by Hamilton
Alessia Cara as Marina
Book 6 theme song:Mercy by Shawn Mendes
Jared Padalecki as Sam Winchester
Book 6 theme song:All Along The Watchtower by Tom Ellis cover
Danielle Panabaker as Icicle
Book 6 theme song:Stone Cold by Demi Lovato
Shelley Hennig as Samantha Harvelle
Book 6 theme song:Timber by Pitbull
Misha Collins as Castiel
Book 6 theme song:Stairway To Heaven by Led Zeppelin
Thomas Sanders as Dr. Emmett Picani
Book 6 theme song: Bad Day by Daniel Powter