Uncle Danny arrives just in time for Martin's birds-and-the-bees talk with Mum and Dad. Sean seeks solace with other imaginary friends when Martin upsets him.
| Name | Type | Role | |
|---|---|---|---|
| Chris O'Dowd | Writer | ||
| Nick Vincent Murphy | Writer | ||
| Tom Hickey | Guest Star | ||
| Hope Brown | Guest Star | ||
| Hugh O'Conor | Guest Star | ||
| Johnny Vegas | Guest Star | ||
| Steve Wall | Guest Star | ||
| Declan Lowney | Director |