Dan Radcliffe will appear in a comedy show called 'This Way Up' alongside Sean Foley and Hamish McColl tommorow evening on BBC2 at 11:30PM GMT.
The Radio Times quotes:
"Sean Foley and Hamish McColl, the stars of hit West End and Broadway shows Play Wot I Wrote and Ducktastic, come to television with a whole host of big stars in tow. Roger Moore, Dawn French [editor's note: the Fat Lady in PoA], Jerry Hall, Simon Callow, Daniel Radcliffe and Will Young join them for a comedy show that includes Moore on the piste, Hall in a tumble drier and Harry Potter turning traffic warden."
Source:
The Leaky Cauldron