Radioactive Man

Radioactive Man is an alias of Keith Tenniswood, a British DJ, electronic music producer, and audio engineer based in London. He is best known as a member of the electronic duo Two Lone Swordsmen. Under the Radioactive Man name, he has worked in styles associated with acid IDM, electro, and nu electro, and he has also used a range of related aliases including RAM, Radio Active Man, Radio-Active Man, RadioactiveMan, Radioactive_Man, The Radioactive Man, Big K, and K. Klunker.

Alongside his work as an artist, Tenniswood has been active behind the scenes in audio production and vinyl manufacturing. He has been described as a co-owner of the imprints Control Tower and Rotters Golf Club, reflecting a parallel role in label operations as well as music-making. In 2010, he began working as a recording engineer at Curve Pusher, and later moved into vinyl mastering and cutting. His lacquer cuts are identifiable by “RAM” etched into record runout grooves, a signature that links his engineering work to his long-running artist identity.

Radioactive Man’s recorded output has appeared on labels including Asking For Trouble and Alien Communications. The project sits within Tenniswood’s broader profile as an electronic musician who moves between production, DJ work, and technical studio practice, with the Radioactive Man alias serving as one of several names used across his releases and engineering credits.