Michael Watson (Frankie Valli), Jon Boydon (Tommy Devito), Gary Watson (Nick Massi), Edd Post (Bob Gaudio), Nicola Brazil (Mary Delgado), Simon Adkins (Bob Crewe), Matthew Cutts (Gyp De Carlo), Matt Thorpe (Joey), Matthew Hunt (Norm Waxman), Nicky Griffiths (Lorraine), Helen Tennent (Francine), Ben Jennings (u/s Hal Miller), Joseph Peters (Hank Majewski)