Gwindel, also known as the cellist in the unofficial Grand Orchestra, is a massive being who rarely speaks. His past remains shrouded in mystery, but it seems that it has left a significant impact on him. He often appears somber and contemplative, forming a close bond with Eles. Despite this, he harbors a grudge against Lucille for reasons unknown. Although Gwindel seldom requires weapons, he relies heavily on his physical strength in combat. However, he carries a giant chainsaw as well. As the driver of the mortuary car that houses the Orchestra, Gwindel also keeps a hedgehog as a pet, which resides primarily within his tophat. This hedgehog was once owned by his daughter, who presumably passed away. It appears that he sees Eles as a substitute for his lost child.
Gwindel's arms are revealed to be those of a Guignol, but he is immune to the virus and uses them without any complications. The origins of these arms and what happened to his real ones remain unknown.