Effective period / Period of releases: 1985 - 2022

Members: Kai Hansen, Michael Kiske, Mark Cross (2), Andi Deris, Uli Kusch, Markus Grosskopf, Roland Grapow, Michael Weikath, Ingo Schwichtenberg, Friedel Amon, Sascha Gerstner, Stefan Schwarzmann, Dani Löble

Power metal band from Hamburg, Germany.

Helloween are considered one of the pioneering power metal bands. The group was formed in 1983 by Kai Hansen (guitar/vocals), Michael Weikath (guitar), Markus Grosskopf (bass), and Ingo Schwichtenberg (drums), although only Weikath and Grosskopf have remained with the band throughout its entirety.

Members:
Kai Hansen (vocals/guitar): 1983 - 1988, 2017 - present
Ingo Schwichtenberg † (drums): 1983 - 1993
Michael Weikath (guitar): 1983 - present
Markus Grosskopf (bass): 1983 - present
Ralf Scheepers (session vocals): 1986
Michael Kiske (vocals): 1986 - 1993, 2017 - present
Roland Grapow (guitar): 1989 - 2001
Richie Abdel-Nabi (session drums): 1993
Andi Deris (vocals): 1993 - present
Uli Kusch (drums): 1994 - 2001
Mark Cross (drums): 2001 - 2003
Sascha Gerstner (guitar): 2002 - present
Mikkey Dee (session drums): 2003
Stefan Schwarzmann (drums): 2003 - 2005
Dani Löble (drums): 2005 - present