|Place of origin:||Earth|
|Appearance:||Partners in Crime|
|Main actor:||Jessica Gunning|
Stacey Campbell was a woman who, in 2009, was on the Adipose Industries diet. She took one Adipose pill per day for three weeks. She lived in 23 Marsley Street, Haringey, London. Her postcode was N4 5DB and her home phone number was 020 7946 0573.
Donna Noble visited Stacey, pretending to be from Adipose Industries. Stacey was preparing to dump her boyfriend. Donna started playing with an Adipose pill necklace, which triggered parthenogenesis in Stacey. Stacey saw an Adipose; Matron Cofelia detected the unscheduled parthenogenesis and activated full parthenogenesis, killing Stacey. Stacey's body swelled then collapsed into a pile of clothes, from which several Adipose emerged. (TV: Partners in Crime)