J. R. R. Tolkien
From Tardis Wiki, the free Doctor Who reference
J. R. R. Tolkien was an Oxford don and the author of The Lord of the Rings. While working at a garden centre, Fitz Kreiner had a conversation with a woman who incorrectly named him as R. J. Tolkien. Fitz convinced her that the character of Frodo had been named after a woman with whom Tolkien had a relationship. (PROSE: The Taint)
Tolkien briefly met the Eleventh Doctor and Amy Pond during a readthrough of The Professor, the Queen and the Bookshop by C. S. Lewis. He didn't like Lewis' work much, because "it didn't include half-a-dozen made-up languages". (COMIC: The Professor, the Queen and the Bookshop)
Behind the scenes
No DWU informs us that his initials stand for, aside from the fact that Professor reveals that his first name is John.
