Harry Platt is the son of Sarah Platt and the late Callum Logan, born on 21st March 2016. Sarah became pregnant with Harry after a short relationship with drug dealer Callum Logan. Before Harry was born, Callum was murdered by Sarah's sister-in-law Kylie Platt who was trying to rescue Sarah from his violent outburst. Callum was buried in secret underneath the annex at 8 Coronation Street where Sarah's mother Gail was using as a bedroom.