Timothy was a young Human boy who lost his parents in the destruction of the the starship SS Vico in a black cluster.

He became friends with Data and tried to emulate Data. He blamed himself for the death of his parents and he believed that by becoming like Data, he would be able to rid himself of his emotion of guilt. Data proved to him that the accident was of natural cause and helped him adjust to his new life. (TNG: "Hero Worship")