Sandy Moffat (alt Frankie Valli), Jon Boydon (Tommy Devito), Matt Nalton (Nick Massi), Edd Post (Bob Gaudio), Nicola Brazil (Mary Delgado), Sean Mulligan (Bob Crewe), Matthew Hunt (u/s Gyp De Carlo), Matt Thorpe (Joey), Ben Wheeler (u/s Norm Waxman), Lucinda Gill (u/s Lorraine), Sophie Carmen-Jones (Francine), Stuart King (Hank Majewski)