Cancerbero is a death metal band from Concepción, Chile originally formed in 1987, releasing two early demos — Guardian of Hell (1988) and Perpetual Agony (1991) — before disbanding in 1994 and reforming in 2001. The band delivers old-school death metal rooted in the raw, thrash-inflected aggression of the late 1980s, and has released three full-lengths: At the Portal of Evoked Blasphemies (2012), Reconquering the Throne of Death (2019), and Sempiternal Decay (2025).

Canilive is a death metal band from Rio de Janeiro, Brazil, active since 2011. The band plays technical, heavy death metal with grindcore influences, and released their debut EP "Psychosomatic Schizo" in 2016 after a period of hiatus and lineup changes. They are an active presence in the Rio de Janeiro underground metal scene.

Cantera is a death metal band from Posadas, Misiones, one of the few extreme metal acts to emerge from Argentina's northeastern Mesopotamia region. The band has appeared on the regional compilation Posadas bajo tierra alongside fellow Misiones acts Sadistica, Najash, and Lobregal, documenting the underground metal scene of the city.

Caos ov Doom is a doom/death metal band from Medellín, Colombia, formed in 2021 and signed to Leçons des Ténèbres Productions. They released their debut EP Tardissime Mortem Fuga in 2022, followed by their first full-length Magnum Opus Tenebrarum in 2023, with lyrics and themes centered on death, dark poetry, and melancholy.

Caosamorts is a thrash/death metal band from Campinas, São Paulo, Brazil, formed in 2014. Drawing influence from acts like Slayer, Carcass, Napalm Death, and Brazilian legends Dorsal Atlântica, they write Portuguese-language lyrics centered on themes of war, corruption, violence, and intolerance. The band has released demo material available on Bandcamp.

Carcinosi is a death metal band from Porto Alegre, Rio Grande do Sul, Brazil, active since 1996 with reunions across multiple periods. The band self-released their debut demo "Transfigured in Cancerous Atrocities" in 1998 and continued releasing material including the full-length "Resumption" in 2019 via True Metal Records, with founding member Tiago Vargas (bass/vocals) as a consistent presence throughout their history.

Carnage Hell is an independent death metal band from Uberlândia, Minas Gerais, Brazil. The band explores themes of war, death, and destruction, and distributes their music through Bandcamp.

Carnal Atrocity is a death metal/grindcore duo from São Paulo, Brazil, formed in 2020 and comprising Karine Campanille (vocals, guitar, bass, synths) and Emiliano Borges (drums). The band released their debut album "Degenerescência" in June 2020, recorded at Estúdio Mitra and mixed at Crossroads Studio in São José dos Campos, São Paulo.

Carnal Blasphemy is a death metal and grindcore band from Bogotá, Colombia, formed in 2005 and currently signed to Gore House Productions. They released their debut full-length Liars Made Authority in 2015 and have remained active in the Colombian extreme metal underground, with appearances on compilations including Extreme Magazine's Colombian Metal sampler series.