Alexander Rae Baldwin III is an American actor, comedian, and producer. He is known for his leading and supporting roles in a variety of genres, from comedy to drama, and has received numerous accolades including three Primetime Emmy Awards and three Golden Globe Awards as well as nominations for a Academy Award, a BAFTA Award, and Tony Award.

Alexander Rae Baldwin III was born on April 3, 1958, in Amityville, New York and raised in the Nassau Shores neighborhood of nearby Massapequa, the eldest son of Carol Newcomb (née Martineau; December 15, 1929 – May 26, 2022) from Syracuse, New York and Alexander Rae Baldwin Jr. (October 26, 1927 – April 15, 1983), a high school history/social studies teacher and football coach from Brooklyn. He has three younger brothers, Daniel (b. 1960), William (b. 1963), and Stephen (b. 1966), who also became actors. He also has two sisters, Elizabeth "Beth" Baldwin Keuchler (b. 1955) and Jane Ann Baldwin Sasso (b. 1965).

Baldwin has also received a number of awards and nominations throughout his career for stage, television, and film roles. He has been nominated for the Academy Award, BAFTA Award, and Tony Award and has received three Primetime Emmy Awards, three Golden Globe Awards, and eight Screen Actors Guild Awards.

Baldwin was briefly engaged in 1983 to actress Janine Turner. He also dated Lori Loughlin, Lori Singer, Holly Gagnier and Jennifer Love Hewitt.