Question: Spencer's Mountain stars an AMerican actor best known for playing Danny Williams in what television series?
Sentence (from "James MacArthur"): James Gordon MacArthur (December 8, 1937 – October 28, 2010) was an American actor best known for the role of Danny "Danno" Williams, the reliable second-in-command of the fictional Hawaiian State Police squad in the long-running television series "Hawaii Five-O".
Relevant evidence: Yes