Matt Corner (Frankie Valli), Simon Bailey (Tommy Devito), Matthew Hunt (Nick Massi), Declan Egan (Bob Gaudio), Amelia Adams-Pearce (u/s Mary Delgado), Mark Dugdale (Bob Crewe), Mark Heenehan (Gyp De Carlo), Will Haswell (Joey), Joe Maxwell (Norm Waxman), Nicky Griffiths (Lorraine), Helen Ternent (Francine), Nathaniel Morrison (Hal Miller), Dan O'Brian (Hank Majewski)