Roots of Necrodeath

Slayer is an American thrash metal band from Huntington Park, California, formed in 1981 by guitarists Kerry King and Jeff Hanneman, drummer Dave Lombardo and vocalist/bassist Tom Araya. Slayer's fast and aggressive musical style made them one of the "big four" bands of thrash metal, alongside Metallica, Megadeth, and Anthrax. Slayer's current lineup comprises King, Araya, drummer Paul Bostaph, and guitarist Gary Holt, who initially joined as a touring musician in 2011 before joining the band permanently after Hanneman's death in 2013; the drummer Jon Dette is a former member of the band.

Possessed is an American death metal band, originally formed in 1982 in the San Francisco Bay Area. Noted for their fast style of playing and Jeff Becerra's growled vocals, they are often called the first band in the death metal genre, and paved the way for the 1980s Bay Area thrash metal scene, along with Metallica, Exodus, Testament and Death Angel. The band is also notable for featuring then-teenage guitarist Larry LaLonde, who went on to join Primus.

Kreator is a German thrash metal band from Essen, formed in 1982. Their current line-up consists of lead vocalist and rhythm guitarist Miland "Mille" Petrozza, drummer Jürgen "Ventor" Reil, lead guitarist Sami Yli-Sirniö, and bassist Frédéric Leclercq. The band's line-up has changed multiple times throughout its 44-year career, most noticeably their bassists and lead guitarists. Petrozza and Reil are the only two original members left in Kreator, although the latter left the band in 1994 but rejoined in 1996. Yli-Sirniö has been the lead guitarist of Kreator since 2001, while Leclercq joined in 2019 as the replacement of Christian "Speesy" Giesler, who had been in the band since 1994.

Bathory was a Swedish extreme metal band formed in Vällingby in March 1983. Frontman and sole songwriter Thomas "Quorthon" Forsberg was the sole constant member, and was at times responsible for all instruments.

Sodom is a German thrash metal band from Gelsenkirchen, formed in 1982. They have gone through various line-up changes, with bassist/vocalist Tom Angelripper the only constant member. The band is currently composed of Angelripper, guitarists Frank "Blackfire" Gosdzik and Yorck Segatz, and drummer Toni Merkel. Sodom has been referred to as one of the "Big Four" of Teutonic thrash metal, along with Kreator, Destruction and Tankard. Sodom heavily influenced the German black metal scene, and is regarded as a pioneer of death metal. Referred to as the most Venom-blackened of German "Three Kings", Sodom further merged thrash and death metal into a "wicked and decadent sound."