There's more than one John Nolan.
John Nolan (Musician) (born February 24, 1978) is an American musician from Long Island, New York. He is the current guitarist and co-lead vocalist of Taking Back Sunday, and the former lead singer, pianist, and guitarist of Straylight Run.
Nolan left Taking Back Sunday in 2003 and during March 2010 rejoined Taking Back Sunday with Shaun Cooper, who left during his first run with the band, reforming the Tell All Your Friends-era lineup. John Nolan is also a solo artist and has recorded an album called Height and "Live at Looney Tunes."
John Nolan (Actor) (born 22 May 1938) is a British film and television actor, known for his role as a Wayne Enterprises board member Douglas Fredericks in Batman Begins, The Dark Knight and The Dark Knight Rises promotional segments Gotham Central. Nolan has a recurring role in his nephew Jonathan Nolan's television series Person of Interest as Greer, a mysterious British figure connected with Decima Technologies.
Born in London, England and has been married to Kim Hartman since 1975. He has two sons and a daughter. He is the uncle to brothers Christopher and Jonathan Nolan.