Ryan Molloy (Frankie Valli), Jon Boydon (Tommy Devito), Joseph Prouse (u/s Nick Massi), Stephen Ashfield (Bob Gaudio), Jayde Westaby (Mary Delgado), Simon Adkins (Bob Crewe), Stuart Milligan (Gyp De Carlo), Jye Frasca (Joey), Ben Wheeler (u/s Norm Waxman), Charlie Bull (Lorraine), Michelle Francis (Francine), Tommie Earl Jenkins (Hal Miller), Michael Conway (u/s Hank Majewski)