After Kuttner's death in 1958, Moore continued teaching her writing course at the University of Southern California, but permanently retired from writing any further literary fiction. Instead, working as "Catherine Kuttner", she carved out a short-lived career as a scriptwriter for Warner Bros. television, writing episodes of the westerns "Sugarfoot", "Maverick", and "The Alaskans", as well as the detective series "77 Sunset Strip", all between 1958 and 1962. However, upon marrying Thomas Reggie (who was not a writer) in 1963, she ceased writing entirely.