Throckmorton P. Gildersleeve is a fictional character from the American radio and television series, The Great Gildersleeve. Created by Leonard McKay, he first appeared on the radio in 1941 and became one of the first spin-off characters from the popular show Fibber McGee and Molly. Gildersleeve is known for his humorous personality and his role as a water commissioner in the fictional town of Summerfield. The character was portrayed by Harold Peary on radio and later by Willard Waterman on television. Gildersleeve's adventures often revolve around his family, friends, and his attempts to manage his professional and personal life, making him a beloved figure in American entertainment history.