— Wotan Ulm
Professor Wotan Ulm (born in 1981) was a professor at the University of Oxford and then at the University of Oxford East 5 after the Yellowstone eruption. He was the author of the bestselling and controversial books Moon-Watcher's Cousins: The Humanoid Radiation Across the Long Earth , An Untuned Golden String: The Higher-Dimensional Topology of the Long Earth  and Peer Reviewers and Other Idiots: A Life In Academia.
During the events of the Long War, he was giving an explanation to the BBC about the kobolds.
During the events of the Long Mars, he was seen on a news channel run by the Britain West 5 Broadcasting Corporation discussing about the nature of the soft places and showing his comtempt of Mellanier.