Tony Nelson is a fictional character from the classic television series I Dream of Jeannie, which aired from 1965 to 1970. He is portrayed by actor Larry Hagman and is an astronaut who becomes the master of a magical genie named Jeannie, played by Barbara Eden. The show revolves around their comedic adventures and the challenges that arise from Jeannie's magical abilities. In the series, Tony is depicted as a kind-hearted and often exasperated character who tries to manage Jeannie's antics while maintaining his professional life as an astronaut. The dynamic between Tony and Jeannie highlights themes of love, friendship, and the humorous complications of having a genie at one's disposal.