Cast members throughout the program's 40-year run included Bob Bell as Bozo (1960–1984) (Bell's voice was later the pattern for that of Krusty the Clown on "The Simpsons"), Ned Locke as Ringmaster Ned (1961–1976), Don Sandburg as Sandy the Tramp (1961–1969), Ray Rayner as Oliver O. Oliver (1961–1971), Roy Brown as Cooky the Cook (1968–1994), Marshall Brodien as Wizzo the Wizard (1968–1994), Frazier Thomas as the circus manager (1976–1985), Joey D'Auria as Bozo (1984–2001), Andy Mitran as Professor Andy (1987–2001) and Robin Eurich as Rusty the Handyman (1994–2001). Bozo returned to television on December 24, 2005 in a two-hour retrospective titled "." The primetime premiere was #1 in the Chicago market and continues to be rebroadcast and streamed annually during the holiday season. Bozo also continues to appear on the WGN-TV float in Chicago's biggest parades.