Sir Daniel Michael Blake Day-Lewis is an English actor. Academy Award-winning English actor Daniel Day-Lewis is known for going to extreme lengths to prepare for a role. He is considered to be a method actor, and is known for his constant devotion to and research of his roles. He often remains completely in character for the duration of the shooting schedules of his films, even to the point of adversely affecting his health. He is known as being one of the most selective actors in the film industry, having starred in only five films since 1998, with as many as five years between each role. Day-Lewis is one of the most acclaimed actors of his generation and has earned numerous awards, including three Academy Awards for Best Actor.

Daniel Day-Lewis was born on April 29, 1957, in London, England as the second son of poet Cecil Day-Lewis and English actress Jill Balcon. He holds both British and Irish citizenship. He was born and raised in London. His father, who was born in Ballintubbert, Queen's County, Ireland, was of Protestant Anglo-Irish background, lived in England from the age of two, and later became the United Kingdom's Poet Laureate. Daniel's mother was Jewish, and his maternal grandparents' families had immigrated to England from Latvia and Poland. His maternal grandfather, Michael Balcon, an important figure in the history of British cinema, was the head of Ealing Studios. He studied acting at the Bristol Old Vic and made his film debut in Sunday, Bloody Sunday. He was acclaimed for his role in My Beautiful Laundrette, and won an Oscar for My Left Foot.

Talking about his personal life, he used to be very troublesome child at his childhood. His mother had him changed his schools number of times. Though he detested the school, he was introduced to his three most prominent interests: woodworking, acting, and fishing. He had sent to an independent school, Bedales in Petersfield, Hampshire, along with his sister. He shared the Balcon family inclination to act, but he was initially more drawn to working-class pursuits than to the stage. Enamored with woodworking and craftsmanship as a teenager, he focused for a time on these pursuits rather than on acting. Eventually, the future Oscar winner allowed chance to play a role in his future, and he applied to only one theater program. When he was accepted to the Bristol Old Vic Theatre School, Day-Lewis threw himself fully into the craft of drama. Day-Lewis married Rebecca Miller in 1996, and they have two sons. He also has a third child from a previous relationship.

Daniel Day-Lewis shifted between theater and film for most of the early 1980s, joining the Royal Shakespeare Company and appearing alongside stars Anthony Hopkins and Sir Laurence Olivier in the 1984 film The Bounty. In 1986, Day-Lewis's career started to gather steam with his acclaimed role in A Room with a View (1986). His first leading role came shortly after, in 1987, when he starred opposite Juliette Binoche in The Unbearable Lightness of Being. To prepare for the role, Day-Lewis learned Czech, and he subsequently stayed in character for the entire eight-month shoot. Following this success, Day-Lewis took a break from Hollywood and returned to the stage for several years. Due to exhaustion and a scare related to seeing the specter of his father while playing Hamlet onstage, Day-Lewis has not returned to the theater since 1989.

Day-Lewis is one of the most acclaimed actors of his generation and has earned numerous awards, including three Academy Awards for Best Actor, for his portrayals of Christy Brown in My Left Foot (1989), Daniel Plainview in There Will Be Blood (2007), and Abraham Lincoln in Lincoln (2012), a feat that makes him the only male actor in history to garner three wins in the lead actor category, and one of only three male actors to win three Oscars (the other two being Walter Brennan and Jack Nicholson). He has also won four BAFTA Awards for Best Actor, three Screen Actors Guild Awards, three Critics' Choice Movie Awards, and two Golden Globe Awards. In June 2014, Day-Lewis received a knighthood from Elizabeth II for services to drama