The comedy pioneer behind the Goon Show, Dr Strangelove and the Pink Panther series is explored in depth in this film, surveying his meteoric rise to fame and troubled personal life.
| Actor | Role |
|---|---|
 Britt EklandSelf | Self |
 Steve CooganSelf | Self |
 Peter SellersSelf (Archival Footage) | Self (Archival Footage) |
 Sinéad CusackSelf | Self |
 Michael PalinSelf | Self |
 Janette ScottSelf | Self |
 Simon WilliamsSelf | Self |
 Nanette NewmanSelf | Self |
 Hanif KureishiSelf | Self |
 Victoria SellersSelf | Self |
| SSarah SellersSelf | Self |
 Joseph McGrathSelf | Self |