Natalie Robyn
From Tardis Wiki, the free Doctor Who reference
Natalie-Molly "Natalie" Robyn (14 July 2002-present) was responsible for Steve Cole's vitally important research into the times David Tennant's Tenth Doctor said the phrase "molto bene" after the events of The Waters of Mars, necessary for the completion of his book, The Knight, The Fool and The Dead.
They were acknowledged in the front of the book with the text "With Twitter thanks to Natalie Robyn - Molto bene!" [1]