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).
Daphne Olivier
Harwood was a friend of C.S. Lewis and Owen Barfield, a fellow follower of Steiner. Lewis was a frequent visitor to the couple’s home in London and became godfather to their son Laurence. She died in 1950 of cancer.