Gunilla Jonsson and Michael Petersén

Gunilla Jonsson and Michael Petersén are Swedish writers and designers of role-playing games. They wrote the ''Mutant'' and ''KULT'' games while working for Äventyrsspel (Target Games) in the 1980s. They helmed their own game company, Ragnarök Speldesign, for a few years in the late 1980s. Provided by Wikipedia