Extras star Stephen Merchant is to have a cameo role in TV drama 24 - but his comedy sidekick Ricky Gervais will not appear as he is "too recognisable".
Merchant created The Office with Gervais before working on Extras
Merchant, who played an incompetent agent in the BBC sitcom, will be seen handing a piece of paper to a member of staff at the Counter-Terrorism Unit.
But Gervais was asked to record a spoof scene, which producers want to release on DVD, his spokeswoman has confirmed.
He appears as an official who is upset when someone steals an idea of his.
The Bafta-winning actor and comedian is seen whispering under his breath that a mission should be given to Special Agent Jack Bauer, played by Kiefer Sutherland.
Then he appears incredulous when someone else makes a similar suggestion and takes the credit for the idea.
Executive producer Jon Cassar told the New York Post he hoped that Gervais would agree to let the scene appear as a bonus on the DVD release of the sixth season.
Fox is due to show the first episode of that series in the US on 14 January.