Elwin Ransom
Elwin Ransom may be based on C. S. Lewis' friend J. R. R. Tolkien ("Elwin" means "Elf friend" in Anglo-Saxon), though he seems to have autobiographical elements. In "That Hideous Strength" Ransom, with his royal charisma and matter-of-fact breezy acceptance of the supernatural, appears less like Tolkien than like Charles Williams (or some of the heroes in Williams' books).
British literature
A major work of science fiction, from the early 20th century, is "A Voyage to Arcturus" by Scottish writer David Lindsay, first published in 1920, and was a central influence on C. S. Lewis's "Space Trilogy".
From the early 1930s to late 1940s, an informal literary discussion group associated with the English faculty at the University of Oxford were "The Inklings". Its leading members were the major fantasy novelists; J. R. R. Tolkien and C.S. Lewis. Lewis is known for "The Screwtape Letters" (1942), "The Chronicles of Narnia" and "The Space Trilogy", while Tolkien is best known as the author of "The Hobbit" (1937), "The Lord of the Rings", and "The Silmarillion".