ELIZABETH MUST FEND OFF A BASELESS INVESTIGATION INTO HER PAST THAT THREATENS TO DERAIL THE FIRST MAJOR LEGISLATION OF HER PRESIDENCY, ON THE SIXTH SEASON PREMIERE OF "MADAM SECRETARY," SUNDAY, OCT. 6

Guest Stars Include CBS' LATE SHOW Host Stephen Colbert as Himself and Wentworth Miller as Senator Mark Hanson, a Canny Political Operator

"Hail to the Chief" - Elizabeth must fend off a baseless investigation into her past that threatens to derail the first major legislation of her presidency, on the sixth season premiere of MADAM SECRETARY, Sunday, Oct. 6 (10:00-11:00 PM, ET/PT) on the CBS Television Network. Also, First Gentleman Henry squirms after his appearance on THE LATE SHOW with STEPHEN COLBERT (with guest star Stephen Colbert)
results in heightened scrutiny of the romance in the First Couple's marriage. Wentworth Miller guest stars as Senator Mark Hanson, a canny political operator.

REGULAR CAST:

Téa Leoni (Elizabeth McCord)
Tim Daly (Henry McCord)
Zeljko Ivanek (Russell Jackson)
Patina Miller (Daisy Grant)
Erich Bergen (Blake Moran)
Kevin Rahm (Mike B)
Wallis Currie Wood (Stevie McCord)

RECURRING CAST:

Evan Roe (Jason McCord)
Clifton Davis (Ephraim Ware)
José Z��iga (Senator Carlos Morejon)

GUEST CAST:

Stephen Colbert (Himself)
Wentworth Miller (Senator Mark Hanson)
Tonya Pinkins (Susan Thompson)
Jordan Lage (Lt. General Kohl)
Linda Powell (FBI Director Amelia Banks)
Michael Patrick Thornton (Evan Moore)
Guy Boyd (Senator Beauregard Miller)
David Adkins (Senator Chet Wagner)
Gita Reddy (Senator Robin Langston)
Georgia Warner (Taylor)
David Christopher Wells (Sam)
Kenya Brome (Keira Peters)
Bruce Sabath (Frank)
David Denowitz (Male Anchor)
Chagmion Antoine (Young Female Anchor)
Marlie Hall (News Anchor)
Kyle Selig (Travis)
Garrett Turner (Sergeant At Arms # 1)
Guillermo Arribas (Sergeant At Arms # 2)
Patricia R. Floyd (Patricia)

WRITTEN BY: Executive Producers Barbara Hall and David Grae

DIRECTED BY: Executive Producer Eric Stoltz