Ryan Molloy (Frankie Valli), Jon Boydon (Tommy Devito), Mark Isherwood (u/s Nick Massi), Chris Gardner (u/s Bob Gaudio), Lucinda Gill (u/s Mary Delgado), Will Barratt (Bob Crewe), Stuart Milligan (Gyp De Carlo), Ben Evans (u/s Joey), Jake Samuels (Norm Waxman), Lucy Martin (Lorraine), Rebecca Jayne Davies (Francine), Mark Halliday (Billy Dixon), Tommie Earl Jenkins (Hal Miller)