The September 29th, 1937 issue of Variety said “that melodramatic and at times astonishing crime fighter, “The Shadow,” returns to the ether to probably find a rather sizable slice of listeners waiting for him. In this series the sponsor will benefit from having a program aimed right at the vulnerability of the audience it seeks. Orson Welles, a young and good actor still riding a crest of recognition won with the Federal Theatre Project, does the title role.

“The Shadow is a bit fantastic, but as with these things, the stunt stands muster with the show’s listeners and appreciably colors the proceedings. Well done, both as to script, acting, and producing.”

Both Billboard and Radio Daily also gave the program positive reviews. A blizzard of mail came into WOR. Shadow fan clubs sprang up across the country. Welles would occasionally appear at promotions donning a black cape, hat, and mask.

Oddly enough, because Welles was constantly rushing from one part of New York to the other, Frank Readick, who’d previously voiced the Shadow as narrator, was kept on to record the show’s opening signature, giving Welles a few more minutes to get into the studio.