Rob Lowe Sam Seaborn Actor 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 Joshua Malina Will Bailey Actor Lily Tomlin Deborah Fiderer Actor Christian Slater Lt. Cmdr. Jack Reese Guest Star Kathleen York Andrea Wyatt Guest Star Omar Miller Orlando Kettles Guest Star Danica McKellar Elsie Snuffin Guest Star Andrew McFarlane Anthony Marcus Guest Star Megan Cavanagh Voting Shortcut Guest Star Kaarina Aufranc Ten Dollars Guest Star Kris Iyer Andy's Doctor Guest Star Devika Parikh Bonnie Guest Star Kim Webster Ginger Guest Star Kris Murphy Katie Witt Guest Star Peter James Smith Ed Guest Star Aaron Sorkin Executive Producer, Writer Thomas Schlamme Executive Producer John Wells Executive Producer Neal Ahern Jr. Producer Paul Redford Producer Kristin Harms Producer Llewellyn Wells Producer Lesli Linka Glatter Director