Although the USS Northampton is portrayed with the second main gun turret located aft of the bridge, which is incorrect, all of the WW2 US heavy and light cruisers that could have portrayed the ship had either been: scrapped; converted and scrapped; mothballed; or preserved as a museum ship. It appears that a ship was offered for use during filming and had to be converted. The ship used could not have physically had a second main gun turret included forward as this is pretty obvious, so it had to be added to the aft section behind the bridge.
Barry Morse played the banker and Gõring funky, Wolf Stoller in the Winds of War.