Julian Casablancas favorite philosopher, whose work, Casablancas claims, held truth as an important standard value. He recognizes Paul Robeson as someone who used his musical platform to help further his serious political intrigue and as someone who, therefore, serves as a role model for politically engaged musicians. Casablancas has been a guest on the Russian sponsored program "Redacted Tonight", as well as included its host, Lee Camp, as an opener for a Voidz show in Houston, Texas in October 2018. Casablancas, along with the Strokes, provided vocals on a cover of Marvin Gaye's "Mercy Mercy Me (The Ecology)" with Joshua Homme on
Julian Mandrake in the Teri Timms fronted rock band "Onyxx" from Austin, Texas as well as the band "Litzbomb". In 2002 Julian temporarily joined Matt Noveskey's band A+ Machines and recorded demos with the band, but departed before playing any public shows. Julian played lead guitar in the band Canvas from 1999 until the band parted ways in 2006. That same year, Julian played guitar on Blue October's "Foiled" tour, covering Justin Furstenfeld's guitar parts while Justin was injured. His performances included Lollapalooza on August 4, 2006, as well as Jimmy Kimmel Live! on June 28, 2006. Julian can be seen performing