Duke Thomas is a fictional character appearing in comics published by DC Comics. He was created by Scott Snyder and Greg Capullo. He was introduced as a supporting character of Batman, his first appearance being in 2013 in Batman (vol. 2) #21, before later leading a youth vigilante movement inspired by Robin, in the comic book We Are... Robin, in May 2015. He officially became Batman's newest partner and joined the Batman family in 2016. The character would be a staple in Batman comics and Detective Comics, and went on in a new role as Gotham's daylight protector: The Signal.