Developed by Javier Grillo-Marxuach as television pilot, rejected, then made into a comic series by Viper Comics, now a TV Series on ABC Family.
The Middleman's slogan is "fighting evil so you don't have to" and the character has been doing it for an unknown length of time. The Middleman is not just the incarnation in the current mini series; it is a job, a title, a persona that is handed down from Middleman to Middleman. There are no written records of the Middlemen throughout history, only Ida holds the answers to the present day Middleman's predecessors.
Each Middleman receives information via Ida from O2STK. They carry out their orders in typical hero fashion and always save the day.
The current series follows hero-by-day artist by night Wendy Watson as she tries to balance her normal life of boyfriends, mothers, and roommates with her more surreal adventures with the Middleman. She is assumably training to become the next Middleman.
Thus far, the adventures of four Middlemen have been chronicled in the book and its supplements - Present Day Middleman, World War Two Middleman (and his doomed sidekick "The Middleboy"), Victorian Middleman and Barbarian Middleman, who operates in a quasi-Hyborean era.
All of the historic Middlemen (with the exception of Victorian Middleman) have female sidekicks who bear a peculiar resemblance to Wendy.