Marks has appeared in the movie G-Spot in the role of J.C.. In 2007 Carlo Marks was cast as Michael in To Be Fat Like Me, a Lifetime movie starring the likes of actress Kaley Cuoco from the Big Bang Theory. In the same year the actor was seen in The Haunting of Sorority Row as Spencer. In 2008 Carlo Marks made a guest appearance as the fiance of super sidekick and best friend of Clark Kent, Chloe Sullivan.
Marks’ other acting credits include the 2008 movie Shred. In 2009, Carlo was cast as the character Chris in Revenge of the Boarding School Dropouts.