Ryan Molloy (Frankie Valli), Ben Wheeler (u/s Tommy Devito), Philip Bulcock (Nick Massi), Stephen Ashfield (Bob Gaudio), Suzy Bastone (Mary Delgado), Simon Adkins (Bob Crewe), Stuart Milligan (Gyp De Carlo), Kieran Jae (u/s Joey), Joseph Prouse (Norm Waxman), Ashley Elizabeth Hale (Lorraine), Madeleine Harland (Francine), Ben Evans (u/s Hal Miller), James Winter (Hank Majewski)