In episode 4, David interviews deputy leader of the Liberal Democrats, Simon Hughes MP, and hosts a debate on the Big Society. Joining him in the Big Society debate are Conservative politician Shaun Bailey, Big Society architect Phillip Blond and journalist Johann Hari.
| Name | Type | Role | |
|---|---|---|---|
| Lauren Laverne | Writer | ||
| David Mitchell | Writer | ||
| Jimmy Carr | Writer | ||
| Charlie Brooker | Writer | ||
| Shaun Bailey | Guest Star | ||
| Phillip Blond | Guest Star | ||
| Johann Hari | Guest Star | ||
| Simon Hughes | Guest Star | ||
| John L. Spencer | Director | ||
| Richard Valentine | Director |