BWW Exclusive: Watch a Preview of Linda Lavin on MADAM SECRETARY

Linda Lavin will guest star in the season five premiere of Madam Secretary, which airs on Oct 7. Lavin will play June, a veteran White House staffer, who used to be Russell Jackson's (Zeljko Ivankek) most trusted aide. She steps out of retirement for a couple of weeks when her hand-picked successor goes on vacation, and she's a maddeningly sharp, maddeningly quick woman who's expert at summarizing a situation 'fairly' -- until a minute later when you finally feel that stiletto going in your side. Stevie (Wallis Currie-Wood) works closely with June in the episode