Billie Appiah

 is a character in the British political drama thriller series The Diplomat. She is portrayed by Nana Mensah.

Biography
Billie is the White House chief of staff. She and Stuart Hayford used to run campaigns together, and she often relies on his judgment. She has her eyes on US ambassador Kate Wyler's political future.

Personality
Billie is tenacious and skilled.

Appearances

 * The Diplomat