You've seen Casino Royale, right? If not, go watch it and come back. Mr. White will be making a return in the new Bond film.
Mr. White, played by Jesper Christensen, was the villain's main contact in Casino Royale and had a run in with Bond.
DarkHorizons reports that Mr. White will "endure 007's interrogation methods at the beginning of the [new] film," with the sequel continuing the story immediately after Royale ends.
'Bond 22' will begin filming this December and is planned for release on November 7, 2008.
DarkHorizons: Mr. White Returns For "Bond 22"