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 Ron Canada Under Secretary of State Theodore Barrow Guest Star Mary Kay Place Surgeon General Millicent Griffith Guest Star Patrick Fischler Walter Sprout Guest Star Cleo King Marla Worisky Guest Star Gary Cole Vice President Bob Russell Guest Star Kristin Chenoweth Annabeth Schott Guest Star Kim Webster Ginger Guest Star Jimmy Smits Matthew Santos Guest Star Willie Gault Agent Madsen Guest Star John Wells Executive Producer