Louis Edmonds was born in Louisiana, one of three children. Edmonds was raised Episcopalian, and served as an acolyte during his childhood. He caught the acting bug early on, being fascinated by the films he saw. He graduated college and served in World War II before he was able to make his Broadway debut. He appeared in several Broadway plays including Candide, Maybe Tuesday, and A Passage to India. He played Langley Wallingford on All My Children for over fifteen years, receiving three Emmy nominations for the role. Edmonds was one of only two actors who appeared in both the first and final episodes of Dark Shadows.