Ryan Molloy (Frankie Valli), Glenn Carter (Tommy Devito), Mark Isherwood (u/s Nick Massi), Stephen Ashfield (Bob Gaudio), Suzy Bastone (Mary Delgado), Simon Adkins (Bob Crewe), Stuart Milligan (Gyp De Carlo), Jye Frasca (Joey), Joseph Prouse (Norm Waxman), Ashley Elizabeth Hale (Lorraine), Madeleine Harland (Francine), Tommie Earl Jenkins (Hal Miller), Kieran Jae (u/s Hank Majewski)