A skilled piano player before he was barely old enough to talk, Gray-Cabey became the youngest person ever to perform at the Sydney Opera Hall at 5 years old. His incredible musical talent won him appearances on myriad talk and news shows, including The Tonight Show with Jay Leno, Dateline, Ripley's Believe It or Not! and The Oprah Winfrey Show, where he was spotted by the folks behind the sitcom My Wife and Kids and offered a recurring role. He soon moved up to a regular role on the hit NBC series Heroes, and after the show was canceled in 2009, he continued his acting career with guest spots on CSI and Family Guy, as well as a part in the 2010 film Pizza Man. Off screen, Gray-Cabey helped found a nonprofit group called Action in Music, which allows inner-city musicians to travel to developing countries for fund-raising concerts.