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).
Chip Duncan
"Tolkien & Lewis - Myth, Imagination and the Quest for Meaning" (released nationwide in the US on public television during September, 2017 by American Public Television (APT). The one hour documentary about the spiritual journey of author C.S. Lewis and his friendship with fellow Inkling and acclaimed author J.R.R. Tolkien was written & directed by Chip Duncan. The producers are Chip Duncan, Robert Huck, Patricia Ostermick and David Crouse. Iowa Public Television (IPTV) is the presenting station to the PBS system. The film includes scholars Christopher Mitchell, Reza Aslan, Tom Shippey and Verlyn Flieger among others.