The White House is the official residence and principal workplace of the President of the United States. Located at 1600 Pennsylvania Avenue NW in Washington, D.C., the house was designed by Irish-born James Hoban, and built between 1792 and 1800 of white-painted Aquia sandstone in the Neoclassical style. It has been the residence of every U.S. president since John Adams. When Thomas Jefferson moved into the house in 1801, he (with architect Benjamin Henry Latrobe) expanded the building outward, creating two colonnades that were meant to conceal stables and storage.

In 1814, during the War of 1812, the mansion was set ablaze by the British Army in the Burning of Washington, destroying the interior and charring much of the exterior. Reconstruction began almost immediately, and President James Monroe moved into the partially reconstructed house in October 1817. Construction continued with the addition of the South Portico in 1824 and the North in 1829. Because of crowding within the executive mansion itself, President Theodore Roosevelt had all work offices relocated to the newly constructed West Wing in 1901. Eight years later, President William Howard Taft expanded the West Wing and created the first Oval Office which was eventually moved as the section was expanded. The third-floor attic was converted to living quarters in 1927 by augmenting the existing hip roof with long shed dormers. A newly constructed East Wing was used as a reception area for social events; Jefferson's colonnades connected the new wings. East Wing alterations were completed in 1946, creating additional office space. By 1948, the house's load-bearing exterior walls and internal wood beams were found to be close to failure. Under Harry S. Truman, the interior rooms were completely dismantled and a new internal load-bearing steel frame constructed inside the walls. Once this work was completed, the interior rooms were rebuilt.

Conan Christopher O'Brien (born April 18, 1963) is an American television host, comedian, writer, producer and performer. Since November 2010 he has hosted Conan, a late-night talk show that airs on the American cable television station TBS.

O'Brien was born in Brookline, Massachusetts, and raised in an Irish Catholic family. He served as president of the Harvard Lampoon while attending Harvard University, and was a writer for the sketch comedy series Not Necessarily the News. After writing for several comedy shows in Los Angeles, he joined the writing staff of Saturday Night Live, and later of The Simpsons. He hosted Late Night with Conan O'Brien from 1993 to 2009, followed by seven months hosting The Tonight Show with Conan O'Brien, the only person to serve as the permanent host for both NBC programs.

O'Brien was born in Brookline, Massachusetts (a suburb of Boston) to Thomas O'Brien, a physician, epidemiologist, and professor of medicine at Harvard, and Ruth O'Brien (née Reardon), an attorney and partner at the Boston firm Ropes & Gray. He is the third of six children. O'Brien's family is Irish Catholic and descends from pre-Civil War era immigrants. In a Late Night episode, O'Brien paid a visit to County Kerry, Ireland, where his ancestors originated.

Brian Douglas Williams (born May 5, 1959) is the anchor and managing editor of NBC Nightly News, the evening news program of the NBC television network, a position he assumed in 2004. Williams was listed among Time Magazine's 100 Most Influential People in the World in 2007, and in 2010, a prominent media observer dubbed him "the Walter Cronkite of the 21st century."

Williams was reared in a middle-class Irish Catholic home. His father, Gordon L. Williams, was an executive vice president of the National Retail Merchants Association, in New York. During childhood, his family moved from his birthplace, Ridgewood, New Jersey, to Elmira, New York. He lived in Elmira for ten years before moving to Middletown, New Jersey, when he was in junior high school.

He graduated from Mater Dei High School, a Roman Catholic high school in the New Monmouth section of Middletown. While in high school, he was a volunteer firefighter for three years at the Middletown Township Fire Department. His first job was as a busboy at Perkins Pancake House.

James Christian "Jimmy" Kimmel (born November 13, 1967) is an American comedian, actor, voice artist and television host. He is the host of Jimmy Kimmel Live!, a late-night talk show that airs on ABC. Prior to that, Kimmel was best known as the co-host of Comedy Central's The Man Show and Win Ben Stein's Money. Kimmel is also a television producer, having produced shows such as Crank Yankers, Sports Show with Norm Macdonald, and The Andy Milonakis Show.

Kimmel was born in the Mill Basin neighborhood of the New York City borough of Brooklyn, the eldest of three children of Joann (née Iacono), a homemaker, and James Kimmel, an IBM executive. He is Roman Catholic and, as a child, served as an altar boy. Kimmel is of German and Irish descent on his father’s side and Italian descent on his mother’s side. His uncle, Frank Potenza, appeared on Jimmy Kimmel Live! as a regular from 2003 until his death in 2011.

The family moved to Las Vegas, Nevada, when he was nine years old. He graduated from Ed W. Clark High School and then attended University of Nevada, Las Vegas for one year before attending Arizona State University for two years without completing a degree.

Michelle LaVaughn Robinson Obama (born January 17, 1964) is the wife of the 44th and incumbent President of the United States, Barack Obama, and is the first African-American First Lady of the United States. Raised on the South Side of Chicago, Obama attended Princeton University and Harvard Law School before returning to Chicago and to work at the law firm Sidley Austin, where she met her future husband. Subsequently, she worked as part of the staff of Chicago mayor Richard M. Daley, and for the University of Chicago Medical Center.

Throughout 2007 and 2008, she helped campaign for her husband's presidential bid and delivered a keynote address at the 2008 Democratic National Convention. She is the mother of two daughters, Malia and Sasha, and is the sister of Craig Robinson, men's basketball coach at Oregon State University. As the wife of a Senator, and later the First Lady, she has become a fashion icon and role model for women, and an advocate for poverty awareness, nutrition and healthy eating.