Keith Tenniswood is a British DJ, producer, and remixer.
Tenniswood is better known as one half of the electronic act Two Lone Swordsmen alongside Andrew Weatherall. Outside of the group he is more frequently known as Radioactive Man, and runs the Control Tower electro label.
Tenniswood has also worked with artists such as David Holmes on his album Let's Get Killed, The Aloof, Red Snapper, Death In Vegas & Primal Scream.