The Avenger is a fictional character whose original adventures appeared between September 1939 and September 1942 in the pulp magazine The Avenger, published by Street and Smith Publications. Five additional short stories were published in Clues Detective magazine (1942-1943), and a sixth novelette in The Shadow magazine in 1943.
This radio version of The Avenger ran for 26 episodes from September-December 1945. It can best be described as a somewhat inferior version of "The Shadow". Like The Shadow this was written by Walter Gibson (his Street and Smith house name was Maxwell Grant). It starred James Monks as Jim Brandon, and James LoCurto (who, along with Frank Readick voiced "The Shadow" before the advent of Orson Welles and Lamont Cranston).
Jim Brandon who fought crime as the Avenger was a famous biochemist who perfected two inventions that aided him in the fight against crime: the telepathic indicator allowed him to pick up random thought flashes, and the secret diffusion capsule cloaked him in the "black light of invisibility". The only person that shares his secrets and knew that he was The Avenger, the man feared by the underworld is his beautiful assistant Fern Collier.