Martin Sheen President Josiah "Jed" Bartlet Actor Stockard Channing Abigail "Abbey" Bartlet Actor John Spencer Chief of Staff Leo McGarry Actor Bradley Whitford Dep. Chief of Staff Josh Lyman Actor Allison Janney Press Secretary Claudia Jean "C.J." Cregg Actor Richard Schiff Communications Dir. Toby Ziegler Actor Dulé Hill Charlie Young Actor Janel Moloney Donna Moss Actor Joshua Malina Will Bailey Actor Mary McCormack Kate Harper Actor NiCole Robinson Margaret Guest Star Timothy Busfield Danny Concannon Guest Star Annabeth Gish Elizabeth Bartlet Westin Guest Star Jimmy Smits Matthew Santos Guest Star Kristin Chenoweth Annabeth Schott Guest Star Steven Eckholdt Doug Westin Guest Star John Wells Executive Producer Aaron Sorkin Writer Debora Cahn Writer Josh Singer Writer Thomas Schlamme Producer Alex Graves Director Christopher Misiano Director