Edgar Walker (August 28, 1917 – October 28, 2011) was an American veteran of World War II, businessman, publisher and writer. Walker was the penultimate surviving member of "Castner's Cutthroats", a regiment consisting of sixty-five men who performed reconnaissance missions in the Aleutian Islands during World War II. Castner's Cutthroats was the unofficial name of the 1st Alaskan Combat Intelligence Platoon.