From 2007-2010 Mitchell played live guitar, wrote, and recorded for the Multi Platinum record selling band Filter. In those years Filter toured with artist such as Stone Temple Pilots, Papa Roach, and Korn. Worked with Producers Josh Abraham (Linkin Park, Velvet Revolver, 30 Seconds to Mars) and Bob Marlette (Saliva, Ozzy Osbourne, Seether). Marlow was able to co write, perform, and engineer on are the ending credits track "Fades like a Photograph" for the motion picture 2012, a remix for the single off of "Anthems for the Damned" entitled "Soldiers of Misfortune", and several songs from their latest release "The Trouble With Angels" including the single "No Love". From 2005-2007 he played with the band He Is Legend. Legend has released two studio albums on Solid State Records and one on Tragic Hero Records ; they've toured with bands such as Sevendust, Killswitch Engage, Gym Class Heros, and Norma Jean. From 2001-2005, Marlow played with Classic Case, with whom he released two records. The first was released on Fiddler Records, while the follow up was on Fearless Records. Classic Case has toured with bands such as Puddle of Mudd, Lost Prophets, and Paramore. Mitchell has now set his focus on composing, producing, and engineering out of his studio "Warrior Sound". He has produced several records, including Advent on Solid State/Tooth and Nail Records, A Skylit Drive on Fearless/Tragic Hero Records (127 on the Billboard Charts, 20 on the Billboard Independent Charts), Call to Preserve on Facedown Records, He is Legend on Tragic Hero/Solid State Records and many more.