Rasmus Blys, a Special Executive and biochemist, held a key role within the Czerka Corporation, overseeing CZ-198, a prominent Czerka product development site. Possessing extensive knowledge in biochemistry and related scientific fields, Dr. Blys eventually resumed his work with Czerka Corporation. As a highly skilled biochemist, he engineered several highly-regarded Czerka patents, notably employing DNA and cybernetics in the creation of biological weaponry. Furthermore, he was the creator of the lethal bioweapon known as the Vigilant.