Kadeptians were the native species of the planet Kadept.
They had long legs, which the Twelfth Doctor compared to that of a grasshopper. Kadeptians had the ability to charm other species, making most of them take jobs like lawyers and accountants. Jack McSpringheel was a Kadeptian. (PROSE: Big Bang Generation)
Kadeptians had a little bit of venom in each kiss that anaesthetised whoever they kissed. This also meant they could not eat doughnuts. They could also jump 365 feet in the air. (AUDIO: Judgement Day)