Topic summary
Josiah Bartlet

Extracted from the Wikipedia article Jed Bartlet.
Creation and development
Show creator Aaron Sorkin had not initially intended to feature the president at all. He envisioned the series as focused on the White House senior staff who execute and advise on major policy and political matters. "Then I felt that would become hokey," he said. "We'll constantly be just missing the president. As he walks around the corner, we'll see the back of his head." The character of Josiah Bartlet was then created as a recurring figure, and Martin Sheen was signed to appear in four episodes. Alan Alda (who went on to portray Senator Arnold Vinick), Jason Robards, and Sidney Poitier were also considered for the role. After seeing Sheen's dailies, the producers were so impressed that they asked him to join the regular cast. "They realized that people might catch on that I'd be there only once a month, so they talked to me about a longer commitment," says Sheen. The actor said that part of the reason he took on the role of Bartlet was his involvement in social issues.