Walker shares four sons with his wife Annie: Roman, 11, Riaan, seven, Reign, five, and Rezon, who is just four months old. In addition, Walker has two children with Lauryn Goodman, a four-year-old son named Kairo and a 12-month-old daughter, Kinara. Despite the challenges of raising a blended family, Walker is determined to instill in all his children the same values that helped him rise to the top of his sport.
"With my kids now I don't let them win. If I keep letting them win, when they lose it will be traumatic for them," he said.
"We play football games in the garden and I give it my all because it will instil that into them, they will be better people and become winners. My dad's parents were from Jamaica and left him in England with £200 and a washer when he was 17. So, he passed it down from his parents to me. I try to not do the same as much as possible. But where he taught me to be a winner I try to pass that on to the boys."