Radioactive Man, the alias of Keith Tenniswood, is a pioneering figure in the UK electronic music scene. Emerging in the late 1990s, he gained notoriety both as a solo artist and as one half of the influential duo Two Lone Swordsmen alongside Andrew Weatherall. With a distinctive sound blending elements of electro, techno, breaks, and UK rave culture, Radioactive Man is known for his propulsive live performances and analogue-heavy studio productions.

Tenniswood’s career began in London’s underground music circuit, where his engineering skills and deep understanding of hardware set him apart. After establishing RGC Studios, he worked with numerous celebrated acts, subsequently channeling his creative energy into original music. His debut album as Radioactive Man, released on Weatherall’s Rotters Golf Club in 2001, received widespread acclaim for its lush textures and dancefloor innovation.

Throughout the 2000s and beyond, Radioactive Man released multiple albums and EPs on labels such as Fabric, Control Tower, and his own Asking For Trouble, solidifying his reputation as a master of live electronic improvisation. He is celebrated for performances that harness modular synthesis and classic drum machines for unpredictable, electrifying results. As a mentor and collaborator, Tenniswood has helped nurture new talent in the UK’s underground scene, maintaining a DIY ethos and passion for analogue gear.

His contributions have been influential in shaping the modern electro and breakbeat sound, earning him a devoted international following and a legacy as a true innovator.