 Verheiden contributed to scripts for the feature films "The Mask" and "Timecop", both based on Dark Horse comics, and the latter based on Verheiden's creation.Verheiden was also the creator/writer and supervising producer on the ABC television series "Timecop".In 2007, Verheiden began work on the live-action screenplay for a Teen Titans film for Warner Bros., as well as an adaptation of his own "Ark" (written for "Dark Horse Presents" in the mid-1990s) with Sony Pictures.