The wav file was one I downloaded from a site but they didn't say who it was. The Pic I put up was listed for Jory, again I don't know for sure.
I recently got my hands on The Lost Shows of The Shadow which includes a very early episode aired in 1937 starring Orson Welles. According to the booklet that came with the set, the actors of the Radio Shadow are as follows:
Orson Welles, Bill Johnstone, John Archer, Bret Morrison, James LaCurto, and Frank Readick
The actors to portray The Shadow in the movies are: Rod LaRoque, Victor Jory (Serial), Kane Richmond, Alec Baldwin
Well... The only two actors that portrayed the shadow
in the movies of the 40's to my knowledge were Kane
Richmond & Victor Jory...but neither the voice or your
image appears to be them...Of course there was Rod
Lerouqe in the late 30's at Grand National..got em all
& love em all ...