Three Thirds of the Nation. Here is the cast of the War Production Board (WPB) radio program "Steel." Rehearsal is over and the cast relaxes for a few minutes before going on the air. The actors shown here are Edward Arnold, Howard McNeer, Frank Graham, Fred Shields, Janet Eberhardt, Pat McGeehan, Cy Kendall, Eric Rolf, Lou Merrill, Lucille Meredith, Joe Kearns and Glen Ford