Barb Siebertz is a script supervisor for 24.
Script supervisor Edit
Siebertz has been with the show since Season 2, and continues to work as a script co-ordinator.
She also has a regular column in 24: The Official Magazine. Beginning with Issue 7, Siebertz began "The Day Job", in which she interviews crew members on 24 about what their contribution is to the show. People featured include Holly Henderson, Lloyd Moriarity and Yoshi Enoki Jr.