Handsome and charismatic Radu Bey is not just the commander of an Ottoman slaving ship; at 18 years of age he is one of the greatest men of the Ottoman Empire. Immaculately dressed in brocade pantaloons, a white linen shirt and beautiful red leather boots he wears a turban with a stone and a white floating plume of egrets' feathers, giving him an almost regal appearance. Radu is a warrior with the dangerous combination of intelligence and charisma; qualities that have helped make him the sworn enemy of many, including the Order of Darkness.
Radu Bey is a scholarly man, well educated with a thirst for knowledge. When he was younger he and his brother were raised with Sultan Mehmet II's son and received the finest education of the time. He has read manuscripts by great philosophers and scientists and may understand the phenomenon of the wave.
He is a philosophical and intelligent man, and dines with Luca under the guise of teaching him more about the wave. However it is clear Radu uses this opportunity to size up his opponent, and intends to tempt Luca back to Istanbul with the promise of an education – using Luca's desire to learn more about mathematics and philosophy as bait.