Michael Kiske (ex-Helloween)
Tobias Sammet (Edguy, Avantasia)
Andre Matos (Shaaman, ex-Angra, Virgo (Matos/Paeth))
Sebastian Thomson
Damian Wilson
Glenn Hughes (ex-Deep Purple, ex-Black Sabbath, Iommi)
Thomas Rettke
Olaf Hayer (Luca Turilli, Dionysus (Swe))
Cinzia Rizzo
Rannveig Sif Sigurdardottir (Luca Turilli (guest))
Candice Night (Blackmore's Night)
Sass Jordan
Marco Hietala (Tarot (Fin), Nightwish, ex-Sinergy)
Simone Simons (Epica)
Choirs:
The Trinity School Boys Choir
Oliver Hartmann (ex-At Vance)
Herbie Langhans
Ann Shee, Amanda Somerville, Cinzia Rizzo
Musicians:
Olaf Reitmeier
Derek Sherinian (ex-Dream Theater, Yngwie J. Malmsteen, ex-Alice Cooper)
Jens Johansson (Stratovarius, Silver Mountain, Johansson, ex-Dio, ex-Yngwie J. Malmsteen)
T.M. Stevens
Axel Naschke
Erno ''Emppu'' Vuorinen (Nightwish, ex-Altaria, Edu Falaschi)
Thomas Youngblood (Kamelot)
Erik Norlander

 

Links
http://rapidshare.com/files/4195081/Aina_-_The_Metal_Opera_-_Days_Of_Rising_Doom_-_2003.part1.rar
http://rapidshare.com/files/4198195/Aina_-_The_Metal_Opera_-_Days_Of_Rising_Doom_-_2003.part2.rar
http://rapidshare.com/files/4168390/Aina_-_The_Metal_Opera_-_Days_Of_Rising_Doom_-_2003.part3.rar
Pass: www.metalunion.org