"The Mouth of the South" is Jimmy Hart - also known as "The Colonel" - born January 1, 1943 in Memphis, Tennessee. He's a professional wrestling manager, executive, composer and musician. He's worked in Memphis Wrestling, the WWF, WCW, XWF, WrestleXpress and Total Nonstop Action Wrestling. And he's managed an number of big-time professional wrestlers, including Hulk Hogan, Bret Hart, Ric Flair and "The Honky Tonk Man." Before the wrestling stuff he was part of a band in the sixties called The Gentrys - they had the million-selling record "Keep on Dancin'."
On June 19, 2005 at Slammiversary, The Naturals were assisted in a title defense against Team Canada by Hart, who ran to ringside and threw his megaphone to Chase Stevens, who hit Petey Williams with it and pinned him. Hart acted as the manager of The Naturals until October 3, 2005, when he was taken off TNA television after appearing on WWE Homecoming.
Rumor has it that Hart was fired for attending WWE Homecoming and was later brought back as a figurehead, but this is not the case. He was actually asked by TNA CEO Dixie Carter not to appear for WWE, but it was entirely his choice to do so. Due to Hart's open contracts, no promotion can put a no-compete clause on him. Instead, Hart does promotional in-park appearances at Universal Studios prior to TNA IMPACT! tapings, but does not take part in the actual tapings at Soundstage 21.
Universal Studios is just over the hill, so you have to assume the crew was from Universal. If you must know more, see The Mouth of the South: The Jimmy Hart Story - ECW Press (November 15, 2004), ISBN: 1550225952