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 Renee Estevez Nancy Guest Star Ron Canada Under Secretary of State Theodore Barrow Guest Star Gary Cole Vice President Bob Russell Guest Star Elisabeth Moss Zoey Bartlet Guest Star Mary Kay Place Surgeon General Millicent Griffith Guest Star Ed O'Neill Governor Eric Baker Guest Star Penn Jillette Himself Guest Star Teller Himself Guest Star Stanley Kamel Stanley Guest Star Alan Alda Senator Arnold Vinick Guest Star Kristin Chenoweth Annabeth Schott Guest Star Kris Murphy Katie Witt Guest Star John Wells Executive Producer