| Cast | | Kirsty Lang |  | Presenter |   |
| Sir Jonathan Miller | | Self | |
| James Malpas | | (tbc) | |
| Noel Clarke |  | Self | |
| Mark Lawson | | Presenter | |
| Eva Rothschild | | Self | |
| Russell T Davies |  | Self | |
| David Adjaye | | Self | |
| Steven Moffat |  | Self | |
| Natalie Haynes | | Reviewer | |
| Barry Humphries | | Self | |
| Adam Smith | | Self | |
| John Simm |  | Self | |
| Stefanie Powers | | Self | |
| Jaume Plensa | | Self | |
| Murray Gold |  | Self | |
| Ed Smith | | Self | |
| Michael Portillo | | Self | |
| Kevin LeGendre | | Self | |
| Catherine Tate |  | Self | |
| David Tennant |  | Self | |
| Ryan Gilbey | | Self | |
| Maggi Hambling | | Self | |
| Louis de Bernieres | | Self | |
| Cerys Matthews | | Self | |
| John Burningham | | Self | |
| Jenny Colgan | | Self | |
| Duncan Lamont | | Self | |
| Amanda Hopkinson | | Self | |
| Neil Gaiman |  | Self | |
| Helen Mirren | | Self | |
| Stephen Frears | | Self | |
| Clio Bernard | | Self | |
| Olivia Colman |  | Self | |
| Samira Ahmed | | Presenter | |
| Bryony Lavery | | Self | |
| Mark Simpson | | Self | |
| Larushka Ivan-Zadeh | | Self | |
| Mark Gatiss |  | Self | |
| John Wilson | | Presenter | |
| Phil Collins | | Self | |
| Gillian Clarke | | Self | |
| Carol Ann Duffy | | Self | |
| Patrick Ness |  | Self | |
| Catherine Bray | | Guest | |
| Ben Lerner | | Guest | |
| Roy Williams | | Guest | |
| Peter Capaldi |  | Guest | |
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