Sam Seaborn(Rob Lowe)
Madeline 'Mandy' Hampton(Moira Kelly)
Charlie Young(Dulé Hill)
Claudia Jean 'C.J.' Cregg(Allison Janney)
Tobias Zachary 'Toby' Ziegler(Richard Schiff)
Leo McGarry(John Spencer)
Joshua 'Josh' Lyman(Bradley Whitford)
Josiah 'Jed' Bartlet(Martin Sheen)
Abbey Bartlet(Stockard Channing)
Donnatella 'Donna' Moss(Janel Moloney)
Will Bailey(Joshua Malina)