Harrison Thompson is the father of Flash Thompson and Jessie Thompson and the husband of Rose Thompson. He was an honest cop with an alcoholism problem. He would turn violent when drunk and was abusive towards his children. This became worse over the years. Most of Flash's problems during his college years was because of his father's abusive behavior. Even when Flash was an adult and finally found out that he was now stronger then his father, both physically and mentally, a look in his father's eyes made Flash cower as if he was a child again. Flash has barely spoken to his father since then.