Image Credit: AFP via Getty Images David Del Rio is a family man with two children at home. The actor, best known for his role in CBS' Matlock, is an open book when it comes to fatherhood and has shared countless moments with his wife and children on his social media accounts. Learn more about David's kids and life as a parent here. Who Is David Del Rio? David is an actor, director, writer and producer from Miami, Florida. As of now, he's best known for playing the role of Billy Martinez in CBS' Matlock.