Quiz and celebration of 50 years of the BBC's second channel, hosted by Dara O Briain. With Richard Osman supplying extra facts and figures, celebrity teams and guest spots from the channel's past and present, All About TWO tells you everything you've ever wanted to know about the channel but didn't know you wanted to ask. It's part celebration, part quiz and all love.
| Actor | Role |
|---|---|
 Dara Ó BriainSelf - Presenter | Self - Presenter |
 Richard OsmanSelf - Presenter | Self - Presenter |
 Hugh DennisSelf - Panellist | Self - Panellist |
 Deborah MeadenSelf - Panellist | Self - Panellist |
 David MyersSelf - Panellist | Self - Panellist |
 Brian CoxSelf - Panellist | Self - Panellist |
 Meera SyalSelf - Panellist | Self - Panellist |
 Gareth MaloneSelf - Panellist | Self - Panellist |