St. John Terrell's Music Circus 1949 Souvenir Program / Front Cover 1949 Souvenir Program Courtesy: Bertie Smith

The information in this program indicates that the first season of the Music Circus had one resident company, that performed all the leading roles, supporting roles, and the singers and dancers. In later years, stars would be brought in for each show with the resident company comprised of singers and dancers who sometimes played supporting and minor roles.