Strackman Lux

Strackman Lux was a 50th century human that built the Library, a giant library encompassing a whole planet. While officialy this was an act of philanthropy, in reality he built the library to save his dying daughter, Charlotte Abigail Lux. Some time after the library was completed, a Vashta Nerada infection trigered a lockdown, and it was up to Strackman's descendants to break the seals and find out what had become of Charlotte. This took three generations and it was his grandson Felman Lux that finally was able to penetrate the Library. He was the only surviving member of the original expedition team not including the Doctor and Donna. (DW: Silence in the Library/ Forest of the Dead)