The Shedagen were an alien race that created the Shadow People.
Some time several Shedagen and one of the Shadow People travelled to space. However, their space ship crashed on Earth. After that the Shedagen stayed on Earth. They were not causing any harm and stayed among themselves until they died. The Shadow Person took care of the Shedagen and made sure that the Shedagen had a good life and died happily. (AUDIO: The Shadow People)