De la infiintare pana in octombrie 2005, membrii NIGHTWISH au fost:

Tuomas Holopainen, creatorul muzicii
si versurilor (instrumente: keyboards, pian)
Tarja Turunen (front-leader vocal)
Marco Hietala (bass si vocal remarcabil)
Emppu Vuorinen (lead guitar de inalta tinuta)
Jukka Nevalainen (stapan absolut al bateriei)

Deocamdata, Nightwish inseamna : Tuomas, Emppu, Jukka, Marco