Question: What actor best known for his portrayal of Dr. Watson in a series of films and in the radio series "The New Adventures of Sherlock Holmes" also starred in 20th Century Fox Film The Rains Came?
Sentence (from "The Rains Came"): The Rains Came is a 1939 20th Century Fox film based on an American novel by Louis Bromfield (published in June 1937 by Harper & Brothers).
Relevant evidence: Yes