Mr. James Frank is the head of Federal Bureau of Investigation and Mr. Fizz's British counterpart/rival who has raised the legal beer drinking age to twenty-one and enforces this law strongly. Numbuh 6 protect him, Mr. Frank speaks with a British accent and wears a fancy black suit and glasses. Unlike his Spanish counterpart , Mr. Frank is a child-loving , nice man, who loves kids while Mr. Fizz hates them. He uses various weapons based on alcohol bottles and barrels.
Mr. Frank is a lean and tall man like Mr. Fizz, except who has light grey hair with white lines. He wears blue shades and his attire consists of a black suit with a light grey suit underneath adorned by a red tie and big black shoes. His most prominent features are his glasses and his hair color.