009 is the code number of a '00 Agent' who is briefly mentioned (but not seen) in the 1999 film The World Is Not Enough. To date, across the James Bond franchise as a whole, there have been five individuals who have held the number 009.
When the terrorist Victor Zokas (aka. Renard) kidnaps wealthy heiress Elektra King, her oil tycoon father Sir Robert King approaches M, an old friend and the current head of the British Secret Intelligence Service (SIS/MI6), for help. Instead of paying the ransom, she sends a 00 Agent - 009 - to assassinate the terrorist. Before he can complete his mission, Elektra escapes captivity. However, a week later 009 catches up with Renard and puts a bullet in his head. By a fluke accident, the bullet was lodged in Renard's skull and instead of a swift assassination, Renard won a slow and painless death.