Hollow Kost (born June 4, 1954 in either Oxford, England or somewhere in Germany) is a Zaibatsu scientist who is kept alive by Zaibatsu drugs. His wife Henrietta de Courcy died on the operating table after a motoring accident. He has numerous scars around his temple and has had extensive surgery on his spinal column. He sports a Saville Row haircut and lives in his penthouse in the heart of the Zaibatsu complex. He is also known as "The President", "The Doctor" and "The Cure".

His name is a play on the word Holocaust.