tommy, his wife angela (kathryn hunt), and their children katy (lucy-jo hudson) and craig (richard fleeshman) first came to the street as the new tenants of number 6 and using the surname "nelson". they came originally from sheffield where angela had worked as a barmaid. she witnessed a murder and gave evidence against the accused. the family of the accused threatened angela and her family and eventually tried to set fire to their house. the harrises were protected by the witness protection programme, given a new identity and moved to weatherfield.