Duncan McLeod is a fictional character from the television series Highlander. He is portrayed as an immortal warrior who has lived for centuries, battling other immortals in a quest for survival and power. Duncan is known for his strong moral code and often seeks to protect the innocent while grappling with the challenges of his unique existence. The character was created by Gregory Widen and first appeared in the 1992 film Highlander. He is played by actor Adrian Paul in the television series, which ran for six seasons. Duncan's adventures often involve themes of honor, friendship, and the consequences of immortality.