Valkenhayn R. Hellsing

Valkenhayn Hellsing is Rachel's elderly butler and trusted adviser who has served the Alucard family line for generations.

Information
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, although others might apply), but he always acts in a sophisticated and gentlemanly manner. Judging from comments frequently dropped by Rachel, he seems to have once been a vigilante himself.

He seems to know of Hazama well enough to recognize him on sight, even though Terumi can change shape. He has an existing friendship with Jubei and is brave enough to attack Terumi on sight.

According to the BlazBlue Material Collection, he is one of the Six Heroes and an exceptionally strong fighter, although so far he hasn't been shown fighting within the series.

Trivia

 * Valkenhayn and Rachel's last names Hellsing and Alucard may be a reference to the anime and manga Hellsing, in which one of the primary characters is a vampire named Alucard.