Twilight Zone was a speed/thrash metal band from Düsseldorf, Germany, who originally formed in 1984 as a punk band, under the name Die Dunkelmänner. A while later they were playing more of a thrash style with some crossover influence, and their name had been changed to Guardian. They released a 7-song demo tape under that name in 1988. They then changed the name to Twilight Zone and released 2 more demo tapes (in '90 and '92) before splitting up.