Harry Hyde is the son of Grayson Sinclair and Perdita Hyde-Sinclair, born to surrogate Katie Sugden. After seven miscarriages Grayson and Perdita turned to surrogacy to have a child. Katie offered to help but soon regretted her decision after realising how unstable Grayson and Perdita's marriage was. Katie threatened to abort the baby after Perdita left Grayson for Matthew King but she kept it grew closer to Grayson. Perdita attacked Katie when she discovered Katie and Grayson were in a relationship and planed to raise her baby together.