Valkenhayn R. Hellsing Valkenhayn has been the butler to the Alucard family of vampires for centuries. He possesses a sharp wit and is concerned for Rachel's well-being. Valkenhayn seems to be worried about Rachel associating with things below her class (particularly Ragna the Bloodedge, although others might apply), but he usually acts in a sophisticated and gentlemanly manner. Judging from comments frequently dropped by Rachel, he seems to have once been a vigilante himself.

He has shown a savage temper on occasion, mainly seen during battle. During Continuum Shift he lost his temper after Hazama insulted Rachel, his voice deepened and his teeth sharpened into fangs.

Valkenhayn appears to possess the ability to teleport those that he lays his hands on. He also knows a mysterious and painful technique that helped to unlock Jin Kisaragi's hidden power after his abduction by Rachel in Continuum Shift. This technique, strangely, actually inhibited Jin from using Yukianesa for a time because it was his will to use the blade. In the end, Jin realized this and truly became its master (the 'hidden power' was probably referring to this fact).