Latiff Hadi and Tina Cuffie were in court for a preliminary hearing on Wednesday. They were previously known as Floyd and Tina Wimes.
Their son, 6-year-old Khalil Wimes, weighed just 30 pounds when he died back in March, approximately half the weight for a child his age.
Police say Khalil's parents drove him to Children's Hospital of Philadelphia. Hospital staff called 911 when they saw the boy and the condition he was in.
He was pronounced dead at the hospital.
Action News later learned that Khalil was removed from his parents care when he was just a week old, but his parents eventually got him back, against the advice of case workers and other family members.