I've given this a go - these are probably well wide of the mark.
Nush - Sada
Fed - Stuart or Bubble
Jon - not like any previous housemate
Anouska - Kate
Tania - Sophie
Steph - Elizabeth
Scott - Tom, I think Scott is a bit like Paul as well
Gos - not sure - Spencer?
Sissy - Caroline
Lisa - Lynne
Cameron - Dean maybe or Sunita
Justine - Narinder
Ray - Jonny