Sir Killalot (known as Sir K. in Nickelodeon Robot Wars and often otherwise shortened to Killalot) was one of the most famous House Robots from the UK TV show Robot Wars. He made his debut in Series 2, and has appeared in every series since, including Robot Wars Extreme, all international versions and the reboot. Sir Killalot was one of the largest and best-known House Robots, often appearing at the centre of most Robot Wars merchandise, advertisements and press material during both runs of the show. His main weapons were a set of hydraulic crushing jaws and a lance, each mounted on a pair of independently-operating arms either side of him.