Pierce Brendan Brosnan (; born 16 May 1953) is an Irish–American actor, film producer, activist, architect and environmentalist. Born in Ireland, Brosnan became a naturalised American citizen. After leaving comprehensive school at age 16, Brosnan began training in commercial illustration, then went on to train at the Drama Centre in London for three years. Following a stage acting career he rose to popularity in the television series Remington Steele (1982–1987), which blended the genres of romantic comedy, drama, and detective procedural. After the conclusion of Remington Steele, Brosnan appeared in films such as the Cold War spy film The Fourth Protocol (1987) and the comedy Mrs. Doubtfire (1993).
In 1994, Brosnan became the fifth actor to play the secret agent James Bond in the Eon Productions film series, starring in four films from 1995 to 2002 (GoldenEye, Tomorrow Never Dies, The World Is Not Enough and Die Another Day). He lent his likeness for Bond in the video games GoldenEye 007, The World Is Not Enough, James Bond 007: Nightfire and James Bond 007: Everything or Nothing, providing his voice for the latter. During this period, he also took the lead in other films including the epic disaster adventure film Dante's Peak (1997) and the remake of the heist film The Thomas Crown Affair (1999). Since leaving the role of Bond, he has starred in such films as the musical/romantic comedy Mamma Mia! (2008), the Roman Polanski-directed political thriller The Ghost Writer (2010) and the action spy thriller The November Man (2014).
In 1996, along with Beau St. Clair, Brosnan formed Irish DreamTime, a Los Angeles-based production company. In later years, he has become known for his charitable work and environmental activism. He was married to Australian actress Cassandra Harris from 1980 until her death in 1991. He married American journalist and author Keely Shaye Smith in 2001, and became an American citizen in 2004, holding dual citizenship in the United States and Ireland. He has earned two Golden Globe Award nominations, first for the television miniseries Nancy Astor (1982) and next for the dark comedy film The Matador (2005).
He is also known as Pierce Brendan Brosnan.