Neal Purvis and Robert Wade have worked on every single movie in the franchise since 1999’s The World is Not Enough.
Once Danny Boyle agreed to come on board, he brought along writer John Hodge (Trainspotting) to work on their own screenplay, which the producers agreed to.
Sam Mendes, who directed by Skyfall and Spectre, had John Logan come in to do some additional work, for example.
They were initially brought in to pen a draft of the screenplay while a director search was being held.