Martha Raddatz
The cast of 2012 Vice Presidential Debate - 2012 includes: Joe Biden as himself Martha Raddatz as Herself - Moderator
2012 Vice Presidential Debate - 2012 - TV was released on: USA: 11 October 2012
The cast of 2004 Vice Presidential Debate - 2004 includes: Dick Cheney as himself Gwen Ifill as Herself - Moderator
The cast of 1996 Vice Presidential Debate - 1996 includes: Al Gore as himself Jim Lehrer as Himself - Moderator
I believe you mean "moderating," although at times it probably does seem like mediating. The moderator for the 2012 vice presidential debate was Martha Raddatz, a veteran news-woman for ABC, with expertise in foreign policy.
The cast of 2000 Vice Presidential Debate - 2000 includes: Dick Cheney as himself Joe Lieberman as himself Bernard Shaw as Himself - Moderator
The cast of 2008 Vice Presidential Debate - 2008 includes: Joe Biden as himself Gwen Ifill as Herself - Moderator Sarah Palin as herself
Centre College
Danville,Kentucky
The 2008 Vice Presidental debate was held in Washington University in St. Louis, MO.
The cast of 1984 Vice Presidential Debate - 1984 includes: George Bush as himself John Mashek as Himself - Panelist Norma Quarles as Herself - Panelist Dorothy Ridings as Herself - League of Women Voters Sander Vanocur as Himself - Moderator
The vice presidential debate between VP Joe Biden and Paul Ryan is on Thursday, October 11, 2012 at 9 p.m. eastern. The debate will be held at Centre College in Danville, Kentucky and is moderated by Martha Raddatz, ABC News Chief Foreign Correspondent. All major news networks will cover the debate.