Born in Mt. Lebanon, Pennsylvania, Daniel London's love of the theater began in his youth. As a high school student, not only did he perform in school plays, but also a play that he wrote was performed at the Kennedy Center in Washington, DC. After graduating from Oberlin College with a degree in English (with a focus on Creative Writing), he moved to New York City where he began to land roles as an actor. His first on screen appearance was in "The Garden of Redemption" (Showtime, 1997) a TV movie starring Anthony Lapaglia and Embeth Davidtz. London's first major exposure came across from Robin Williams, as a friend and helper for the title character in "Patch Adams" (1998). Also in 1998, London appeared on Broadway in Beth Henley's "Impossible Marriage" starring Holly Hunter. The play brought him to the attention of Steven Spielberg, who cast him in the Tom Cruise film "Minority Report" (2002), as the caretaker of the future-seeing 'precogs.' After a couple of supporting roles in film and television, London appeared opposite musician Will Oldham in filmmaker Kelly Reichardt's sedate two-man film, "Old Joy" (2006). His next major role was in Charlie Kaufman's offbeat "Synecdoche, New York" (2008), which he followed with consistent work in supporting roles on both the large and small screen on shows like "Nurse Jackie" (Showtime, 2009-2015) and "Law & Order: Criminal Intent" (NBC, 2001-2011) and in mostly independent films such as "Listen Up, Philip" (2014). In 2015, London reprised his role as Wally, the caretaker of the precogs, in the Fox TV reboot of "Minority Report" (Fox, 2015-).