Herr Arnes Penningar are:

Annika Waern: lead vocals, recorders, fiddle 
Christer Lewin: guitar, bouzouki, oud, percussion
Stefan Kayat: Swedish bagpipes, crumhorn, hurdy-gurdy, Appalachian dulcimer, mandola, harmonic flutes, Jew's harp, percussion, vocals
Anders Österberg: cello, mandolin, vocals