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 John Goodman Glenallen Walken Guest Star James Cromwell President D. Wire Newman Guest Star Michael Hyatt Angela Blake Guest Star Terry O'Quinn General Nicholas Alexander Guest Star Allison Smith Mallory O'Brien Guest Star Ryan Cutrona CIA Director George Rollie Guest Star Ron Canada Under Secretary of State Theodore Barrow Guest Star Steve Ryan Secretary of Defense Miles Hutchinson Guest Star Kris Murphy Katie Witt Guest Star Joshua Malina Will Bailey Guest Star John Wells Executive Producer