Michael Weston (born Michael Rubinstein; October 25, 1973) is an American television and film actor. His best-known roles are the private detective Lucas Douglas on House, the deranged and sadistic kidnapper Jake in the HBO drama Six Feet Under and Pvt. Dancer on Scrubs.
Michael Rubinstein was born in New York City, the son of actors John Rubinstein and Judi West. His paternal grandfather is Polish-born Jewish piano virtuoso Arthur Rubinstein. He is also the great-grandson of Polish conductor Emil Młynarski, the founding conductor of the Warsaw Philharmonic Orchestra and principal conductor of the Scottish Orchestra.
He holds a degree in Theater and Arts from Northwestern University. In 2000 he changed his surname to "Weston" as there was already a "Michael Rubinstein" in the Screen Actors Guild.
Weston is a good friend of actor Zach Braff and has appeared in three features with him, Garden State, Wish I Was Here and The Last Kiss, and as a guest star on Braff's television show, Scrubs. Weston has also appeared as Simon Marsden, Olivia Benson's half-brother on Law & Order: Special Victims Unit.
Weston appeared in the fifth season of House as a private investigator named Lucas Douglas hired by Dr. Gregory House; he reappeared in season six. Series creator David Shore planned a spin-off show with Weston's character as the lead in 2008, but the show never went into production.
In 2009, Weston appeared in the Gerard Butler action film Gamer. He made a guest appearance on White Collar and Burn Notice (in which the main character, Michael Westen, has a name very similar to his). In 2012, he starred in the A&E television movie, Coma.
In 2016, he appeared as Harry Houdini in Houdini & Doyle.
Rubinstein has been married to musician Priscilla Ahn since 2010.