Vocalists:
Counselor - Simone Simons (Epica)
Astronomer - Hansi Kürsch (Blind Guardian)
Biologist - Floor Jansen (Nightwish)
Opposition Leader - Tommy Karevik (Kamelot)
Chemist - Tommy Rogers (Between the Buried and Me)
Prophet - Nils K. Rue (Pagans's Mind)
Diplomat - Michael Eriksen (Circus Maximus)
Historian - James LaBrie (Dream Theater)
Captain - Tobias Sammet (Avantasia)
TH-1 - Mike Mills (Toehider)
President - Russell Allen (Symphony X)
Preacher - Zaher Zorgati (Myrath)