The character is initially referred to as Debbie DiLaguardia; she becomes Debbie Fiderer after a divorce. She is first referred to in dialogue during the first season episode "
A Proportional Response" as the White House personnel office worker who recommends Charlie to serve as the President's personal assistant, even though he only applied for a position as a messenger. Her opinion is well-respected to the point that
Josh Lyman immediately interviews and subsequently offers the role to Charlie. After the death of President Bartlet's previous private secretary
Dolores Landingham, Bartlet is extremely reluctant to hire a permanent replacement. Finally prevailed upon to do so by his
White House staff, Bartlet expresses to
Charlie Young an expectation that most of the proposed candidates will not meet with his approval. Charlie knows that the person for the job will need both the character and sense of humor that the President is looking for. Fiderer is opinionated, strong willed, eccentric, and very much her own woman; Charlie knows he has the perfect fit to replace Mrs. Landingham. Before her initial interview with President Bartlet, Deborah takes anti-anxiety medication; when it didn't seem to work, she takes another, and by the time of the interview she is intoxicated. She reveals that she has been an alpaca farmer and a professional gambler. Before that, she worked in the White House personnel office, and when President Bartlet asked what happened, she says she was "screwed with her pants on." It is later revealed that she was fired for recommending Charlie as Bartlet's personal assistant, instead of the son of a powerful Democratic Party contributor. She refuses to reveal this detail in spite of Bartlet's explicit order to, further impressing him, even as he deduces the reason. In response to the administration's position on water supplies in the
Third World, she had suggested in a letter sent to the White House that arsenic should be put 'in President Bartlet's water.' Bartlet is nevertheless impressed by her show of respect for the Office of the President, remarking that she'd written
President Bartlet, and concludes she is a "class act". After the First Lady, Debbie is the character most concerned with preventing the President from being overworked in light of his
multiple sclerosis, to the point of having new telephone functions installed and creating and keeping an incredibly strict schedule for senior staff. She appears to gain some infamy for knowing about crises before the President or his secret service detail; Bartlet is very amused when, in the wake of the West Wing being struck by bullets, the Oval Office is flooded with Secret Service agents before Fiderer even appears. Throughout the course of the series, the two develop a friendly rapport. Debbie says that she admires President
Harry S. Truman. When asked her musical preference, she says she is "a
Crazy Horse kind of girl." She also confesses to "a tempestuous affair with a rodeo cowboy during the Summer of Love that the
Hollies played a significant role in." In her final appearance, set on the day that
Matt Santos assumes office, Fiderer is seen clearing out her desk and warning Ronna Beckman that she should never revoke the First Lady's walk-in privileges, even though the President will invariably plead with her to do so. == Critical reception ==