K Street

Maggie Morris (10 episodes, 2003)

Tommy Flannegan

Francisco Dupré

James Carville

Mary Matalin

Junior Partner (10 episodes, 2003)

Agent Richard Wells / ... (5 episodes, 2003)

The film _Mildred Pierce_ (1945) is seen on the TV in a number of scenes, is mentioned in another scene, and is referenced in the final scene of the series.

It was rumored that co-creator George Clooney revealed he feared HBO would not renew the series during a round of golf with Mark Wahlberg. Shortly thereafter Wahlberg pitched his series Entourage to HBO which replaced K Street the following year.

Maggie Morris: You don't understand. The FBI interrupted my morning run. This must be very important.