Gilbert (voiced in Japanese by Toshiyuki Morikawa and in English by John DeMita) is one of the secondary main characters in the Netflix original anime series B the Beginning.

He works with the R.I.S. as their head forensics coroner, helping give them insight on the nastier parts of their cases. Out of the main cast, the one he's closest to is Keith, as they have known each other for a very long time, and considers him a mental competitor in study.

Gilbert has white hair that he wears slicked back except for two long strands on either side of his face, and his eyes are a soft, bright blue. He wears a dark grey turtleneck that he has a mid-length white labcoat over, with a pen nested in the pocket. His pants are a pair of light grey slacks, which he wears a black belt on top of, and his shoes are a light grey slip-on formal shoe with a slight heel.

12345678