Thomas Giles is the solo project of Tommy Giles Rogers Jr., vocalist and keyboardist for progressive metal band Between the Buried and Me, who has used the alias to explore territory incompatible with his main band's aesthetic. Pulse (2011) on Metal Blade Records launched the project formally, followed by Modern Noise (2014), Velcro Kid (2016), and Don't Touch the Outside (2018), each drawing on electronic music, synth-pop, and experimental rock over increasingly pure departures from metal. Rogers has described the project as a space for material that cannot fit within Between the Buried and Me, giving it a deliberately open-ended, genre-agnostic character.

Named after cinema's most infamous Texan, Ocala, Florida's Thomas Hewitt deal in sludge and doom metal — murky, down-tuned, and heavy enough to flatten furniture, with the rural dread their namesake implies.

Burbank, California's Thomas Warner is a solo melodic death metal project that has been active since 2013, channeling the genre's Scandinavian influences through a Southern California lens with carefully crafted arrangements.

Operating from Boonsboro, Maryland since 2016, Thonian Horde practice a traditional-leaning black metal that draws on the mythological and esoteric currents flowing through the American underground.

Portland, Oregon's Thonis have been delivering direct, unembellished death metal since 2016 — the city's fertile underground providing a home for a band more interested in brutality than scene politics.

A death metal act from Tampa, Florida formed in 2024, Thorax of a Mastermind take their cues from a city with one of death metal's most legendary pedigrees, carrying on the tradition of surgical riffs and guttural extremity.

Sterling Heights, Michigan's Thoren have been refining their progressive death metal approach since 2014, pairing intricate compositional structures with genuine heaviness in a style that rewards close listening.

St. Louis thrash band ThorHammer have been swinging since 2014 with a no-frills approach to the genre — riff-driven, hard-hitting, and rooted in the classic American thrash tradition that values aggression over innovation.

Dallas, Texas's Thorn formed in 2023 playing traditional heavy metal and power metal, joining a city with a long history of the genre and bringing melody, anthem-ready hooks, and twin-guitar power to the Texas metal scene.