In 1994, he briefly joined the World Wrestling Federation to perform as an impostor version of The Undertaker. "The Million Dollar Man" Ted DiBiase, who originally introduced The Undertaker into the WWF at Survivor Series 1990, claimed to have found The Undertaker, who disappeared after losing a casket match to Yokozuna at the 1994 Royal Rumble. Shortly after this, Lee began appearing dressed as The Undertaker. DiBiase claimed that he had convinced The Undertaker to come back with his vast amounts of money and made him a member of his Million Dollar Corporation, with his powers now derived from DiBiase's riches instead of the urn that he or his manager, Paul Bearer, toted with him to the ring. For several weeks, Lee wrestled matches as The Undertaker while Bearer "made contact" with the real Undertaker and promised to produce him at SummerSlam in August 1994. At the event, Lee's impostor Undertaker faced off against the actual Undertaker and was defeated. After the match, DiBiase fled from ringside while The Undertaker rolled the impostor into a casket that was taken away. Although the idea was for Lee to continue portraying the impostor Undertaker for some time afterward and to have more matches against the actual Undertaker, the WWF dropped the story after SummerSlam.