The hilarious and bizarre story of Frank Sidebottom, the cult British comedian in a papier mâché head, and the secretive life of Chris Sievey, the artist trapped inside.
| Actor | Role |
|---|---|
 Chris SieveyHimself (Archive Material) | Himself (Archive Material) |
 Mark RadcliffeHimself | Himself |
 Jon RonsonHimself | Himself |
 John Cooper ClarkeHimself | Himself |
 Johnny VegasHimself | Himself |
 Ross NobleHimself | Himself |
 John ThomsonHimself | Himself |
| MMike DohertyHimself | Himself |
 Bruce MitchellHimself | Himself |
| GGaz WhelanHimself | Himself |
| CC.P. LeeHimself | Himself |
| PPaula SieveyHerself | Herself |
| SStirling SieveyHimself | Himself |
| HHarrison SieveyHimself | Himself |
| AAsher HorsefieldHerself | Herself |
| MMartin SieveyHimself | Himself |
| MMichele PounceyHerself | Herself |
| BBrian LittleHimself | Himself |
| MMike SweeneyHimself | Himself |
| BBernard KellyHimself | Himself |
| RRick SarkoHimself | Himself |
| DDave DonaldsonHimself | Himself |