|Location||Nakatomi Plaza, Los Angeles, California|
Hans Gruber was an internationally feared German terrorist from an Undefined Multiverse. He was a fomer member of the West German Volksfrei movement, and the mastermind behind the heist of Nakatomi Plaza, usually running into trouble with John McClane there.
His brother Simon Gruber was a colonel in the East German army. Simon would later claim to want revenge for his brother's death at the hands of McClane, though this was often found to be false. In some universes, he had a son, Piet Gruber, who would become known for a massive art heist.