I really like the texture of Jeff Chandler's voice in The New Adventures of Michael Shayne. Chandler's chiseled voice matched his chiseled visage and was perfect for the show's sort of exaggerated, almost cartoon noir/tough guy/pulp attitude. Just listen to the intros. He's always getting shot or beat senseless as he comments on it, often referring to himself in third person.

You will find a trove of these online at archive.org. (There are twenty-seven 1948 and 1949 episodes featuring Chandler.)
http://www.archive.org/details/Michael_Shayne