The group comprises vocalist Ivar Nikolaisen, guitarists Vidar Landa and Maciek Ofstad, bassist Marvin Nygaard and drummer Håvard Takle Ohr.

Kvelertak has also attracted a following from renowned artists such as Metallica front man James Hetfield who, along with the Norwegian Crown Prince Haakon, watched the band perform in San Francisco.

Hetfield also posted a video on his Instagram account of him watching the band and describing the front man Hjelvik as a "savage" frontman.

[9] His replacement, Ivar Nikolaisen (of Silver and The Good, The Bad and The Zugly), was announced on 20 July at their show in Fjellparkfestivalen, Flekkefjord[10] – he had previously featured as a guest vocalist on 'Blodtørst'.

Guitarist Bjarte Lund Rolland left the band in October 2024, after his right index finger was worn out from years of playing guitar without a pick.