Former Secretary of State Condoleezza Rice is set to guest star in an upcoming episode of NBC's 30 Rock. The former national security adviser joins Tom Hanks, who also will appear on the Thursday night comedy before season's end, a source familiar with the show's plans confirmed to The Hollywood Reporter. Politico reports she will be playing Jack Donaghy (Alec Baldwin)’s ex-girlfriend. Other high-profile guest stars who have turned up on 30 Rock include Will Arnett, Conan O'Brien, Matt Damon, Elizabeth Banks, Michael Sheen, James Franco and Will Ferrell. 30 Rock's Season 5 finale airs May 5.