Hagen's Circus was a 1948 Australian radio serial created by Max Afford.
[1][2] It was set in a circus[3] and starred Thelma Scott as the owner.
Actors who appeared in it included Muriel Steinbeck, Guy Doleman and Charles Tingwell.
Afford researched the story visiting Wirth's Circus.
[5] It was one of the most popular Australian radio serials of its day and helped make the reputation of Guy Doleman.