Inspector Sharpe operates as a Scotland Yard detective within the anime adaptation of Agatha Christie's mysteries. He partners with Hercule Poirot across several investigations, tackling cases such as the disappearance of Prime Minister Verrault, the ABC murders, and the End House mystery. This character replaces the original stories' Inspector Japp, a change adapted for Japanese audiences.

Visually, Sharpe possesses prominent bushy eyebrows, aligning with the series' distinctive art style. Professionally, he exhibits competence in standard police procedures and investigations, though he consistently depends on Poirot's superior deductive skills to resolve complex puzzles. Their working relationship reflects an established partnership, with prior collaborations like "that business at Crays Hill" occasionally referenced.

Inspector Sharpe features prominently across multiple episodes, including multi-part cases like "The ABC Murders" and "Death in the Clouds." His duties encompass conducting interviews, gathering evidence, and overseeing the official facets of investigations. He maintains formal professionalism while readily facilitating Poirot's involvement in police matters.