Len Olson, better known by the ring name Dr. Luther or simply Luther, is a Canadian professional wrestler signed to All Elite Wrestling (AEW), where he works as a wrestler and producer. He is also known for his appearances in Japan for Frontier Martial-Arts Wrestling, WAR, and IWA Japan in the 1990s. Olson has also appeared in numerous promotions throughout the Canadian independent circuit in the 1990s and 2000s.