Who played all of the musclemen in 1959 musical Lil Abner?

In the 1959 musical "Li'l Abner," the role of the musclemen was played by a group of performers known as the "Li'l Abner Musclemen." However, the most notable among them was actor and dancer, John D. McGowan, who portrayed the character of "Big Daddy." The production featured several other actors who contributed to the ensemble of musclemen, emphasizing the comedic and exaggerated physicality of the characters.