Alan Crofoot was born in Toronto, Ontario, Canada. He attended the University of Toronto where he earned a Master’s degree in psychology. His operatic career began at the Canadian Opera, as Spoletta in Tosca, in 1956. Crofoot also appeared in stage productions of musicals such as Man of La Mancha, in London’s West End, and Oliver! on Broadway and Winnipeg’s Rainbow Stage. From 1963 to 1963, Crofoot hosted the CBC children’s program Mr. Piper, which also became well known in the United Kingdom. Crofoot hosted the show dressed as a Pied Piper, with a flower in his hat. He created the role of Josiah Creach in the world premiere of Carlisle Floyd’s Markheim, with Norman Treigle and Audrey Schuh, in New Orleans (1966), as well as appearances at the New York City Opera (Herod in Salome, opposite Maralin Niska, in 1975) and the Metropolitan Opera (The Bartered Bride, directed by John Dexter, in 1978). Also in his repertoire was the Jailer/Inquisitor in Il prigioniero.

In the early morning hours of March 5, 1979, Alan Crofoot jumped from his fifth floor hotel room window in Dayton, Ohio. He died of his injuries at Miami Valley Hospital shortly thereafter. At the time of his death, Crofoot was set to direct the production of Salome by the Dayton Opera Company. Crofoot’s manager, James Sardos, later said that Crofoot was generally happy but had been experiencing “fits of depression” caused by blood pressure medication he had been taking. On the night before his death, Crofoot had been drinking beer which Sardos believed reacted adversely with medication leading to Crofoot’s death.