Martin Sheen President Josiah "Jed" Bartlet Actor Bradley Whitford Dep. Chief of Staff Josh Lyman Actor John Spencer Chief of Staff Leo McGarry Actor Richard Schiff Communications Dir. Toby Ziegler Actor Allison Janney Press Secretary Claudia Jean "C.J." Cregg Actor Dulé Hill Charlie Young Actor Janel Moloney Donna Moss Actor Stockard Channing Abigail "Abbey" Bartlet Actor Michael Hyatt Angela Blake Guest Star NiCole Robinson Margaret Guest Star Terry O'Quinn General Nicholas Alexander Guest Star Gary Cole Vice President Bob Russell Guest Star Steve Ryan Secretary of Defense Miles Hutchinson Guest Star Jesse Bradford Ryan Pierce Guest Star Joshua Malina Will Bailey Guest Star Renee Estevez Nancy Guest Star John Wells Executive Producer