Alex McArthur (born March 6, 1957) is an American actor of film and television.
He was born in Telford, Pennsylvania, the son of Bruce, a contractor, and Dolores McArthur. He studied acting at De Anza College (Cupertino, California) and San Jose State University (San Jose, California), and worked as a bartender at the Studio 54 nightclub in New York City.
McArthur became known for portraying Charlie Reece in the crime-drama film Rampage (1987), and Duell McCall in the Western television-film series Desperado (1987), whose original screenplay was written by Elmore Leonard. He was nominated for Gemini Awards for Best Performance by an Actor in a Supporting Role, for the drama television film ' (1993).
He also appeared in the music video for Madonna's song "Papa Don't Preach", which was included in her The Immaculate Collection (1990) video compilation. In the video, he appears as Madonna's boyfriend and the father of her unborn child.
On December 21, 2019, McArthur's son, Jacob, was shot and killed in Oroville, California. A suspect was arrested on July 12, 2021.