The Affairs of Harlequin

The Affairs of Harlequin is a 1951 Australian radio serial written by Morris West. It starred Robert Peach as George Harlequin.

Background
According to The Age the first episode "The Affair of the Golden Girl" focuses on newsporter Richard Ashley (played by Richard Davies) who "becomes involved when he meets Irishman Mike McCreary in a Munich cafe, and under takes to deliver a message to the mysterious Harlequin. Ashley joins Harlequin on an assignment to combat a racket in fake exit permits."

The series was highly successful.