Genial host Stephen Fry ponders the topic of genius with guests Graham Norton, David Mitchell, Dara O'Briain and Alan Davies. Even simple questions such as "How old are you?" can be a cause of consternation in this quiz show.
| Name | Type | Role | |
|---|---|---|---|
| Graham Norton | Guest Star | ||
| David Mitchell | Guest Star | ||
| Dara Ó Briain | Guest Star |