jasmine o'brien (also billie o'brien) is the daughter of disa o'brien (jan graveson). disa gives birth to jasmine alone in a derelict building on christmas day 1990. she leaves the child in a cardboard box on diane butcher's (sophie lawrence) doorstep. diane and her friend mark fowler (todd carty) name the baby billie and look after her until they find disa and threaten to give the baby to social services unless she returns to walford with them. disa does, under protest, and lives in mo butcher's (edna doré) flat on albert square. with the help of diane and dot cotton (june brown), disa begins to bond with her daughter, who she renames jasmine.