With a sinister laugh, the announcer known as The Shadow intoned: “Who knows what evil lurks in the hearts of men? The Shadow knows!”
Orson Welles as the voice of the Shadow on radio; Wikimedia
The Shadow was a collection of serialized dramas adapted from pulp novels in 1930s. Over decades, The Shadow has been featured on radio, magazine series, comic books, comic strips, television, serials, video games and at least five films. The radio drama included episodes voiced by Orson Welles.
The Shadow 1937