The Perpetual Broadcasting Corporation

The Perpetual Broadcasting Corporation (abbreviated to PBC) is the corporation that manages and produces the Orbiting Human Circus of the Air. They seem to have full control over the show and its employees, making the decision to chain a polar bear to John Cameron's microphone without consulting him.

It is likely that the PBC does not exist outside Julian's daydream, although that is unknown.

President
The president of the PBC, played by Drew Callander, is the head of the corporation, though there is also a board capable of making decisions. He appears in episode 7, where he informs John of the board's decision to chain a polar bear to John's microphone. The president does not seem particularly sensible, making poor decisions about how to run the radio show, including threatening to fire John if Julian does not stop interrupting the broadcast.

Spokesperson
The spokesperson for the PBC, played by Brian Dewan, first appeared in episode 4, giving a "public service announcement" about the City of Drowned Sailors. The spokesperson also appears at the beginning of episode 5, giving another public service announcement about the Great Recitating Platypus of the North.

Switchboard Operators
The switchboard operators, played by Meg Bashwiner and Becky Lauer, appear in episode 3, answering calls about the cricket. Little is known about them.