Milner was born Huckleberry Milner on August 14, 2007 in New York City. He discovered his passion for acting when he followed his sisters into community theater at 4. His professional debut was the role of Dash in Incredibles 2, replacing Spencer Fox. He continues to act professionally in theater & voice-overs. Besides acting, he enjoys hockey, skiing & playing the bass. He loves Thor, Ironman & Spiderman. He has stated that he would like to one day eliminate homelessness in New York City.