- ❝You know there's a decent chance I'm full of crap, right?❞
- —Under-Secretary Duncan
When a Nuclear submarine goes missing in Haeju bay near North Korea, he is called in to advise President Bartlet. Being in his 80s, he considers the middle-aged President Bartlet a child. President Bartlet, in turn, is not a fan of Duncan's attitude towards him. Duncan is then only invited after Leo convinces the President, that with another expert named Peter is recovering from heart surgery, Albie is the only one left able to offer advice on the problem. Albie is a man who likes to tell stories about his military and political career, interesting Leo and annoying the President.
During the 2002 Presidential election the Ritchie campaign gets a prominent Democrat to speak on Ritchie's behalf after the debate. In response, the Bartlet administration has to quickly find a Republican to speak on behalf of Bartlet's foreign policy experience, and Toby is able to call in Albie Duncan.
- His favourite beverage is Schweppes Bitter Lemon.
- Under Secretary Duncan mentions on Air Force One that "I've been at the State Department for 30 years." This is inconsistent with the previous statements that he served during the Truman and Eisenhower administrations, 30 years prior being 1972.
- Holbrook and Martin Sheen appeared as lovers in the 1972 TV movie That Certain Summer.