Fred Porlock is soft-spoken and often perceived as unsociable, a trait noted by Sebastian Moran upon their first meeting. He rarely speaks unless necessary, usually limiting his words to reports or occasional comments during discussions. His quiet nature, combined with a slim build and unassuming presence, makes him highly effective at espionage and disguise work. He often takes on various roles during missions, including impersonating Frida in The Dancers on the Bridge, a murdered man in The Noahtic, and an elderly woman in A Study in ‘S’.

Despite his reserved personality, Fred is gentle and empathetic. His compassion is notably seen when he expresses a deep desire to rescue the kidnapped children held on the Baskervilles’ property. Moran remarks that, among the Moriarty group, Fred bears the closest resemblance to William in terms of moral conviction both share a strong impulse to help those in need.

Though usually quiet, Fred displays unexpected resolve when he opposes William’s plan to sacrifice himself for their cause. Believing William’s actions to be a form of justice that does not require self-destruction, Fred chooses to act independently, secretly writing a letter to Sherlock Holmes in an attempt to save him. Even when confronted by Louis Moriarty, Fred holds firm in his belief, showcasing his loyalty and moral strength.

Fred Porlock is a young man of relatively small stature compared to his allies, standing at 168 cm. He has pale skin, tousled black hair, and gray eyes. His frame is slender, and he typically keeps bandages wrapped around both forearms, stopping just before the wrists.

His usual outfit includes a long-sleeved white dress shirt with rectangular cufflinks, tucked into blue trousers held up by Y-back suspenders. Over this, he wears a black coat and a light blue scarf, which can also function as a hood when needed. He carries a pen and notebook in the breast pocket of his shirt, using them to record observations and gather information, particularly in investigations involving crimes committed by members of the nobility.

Fred Porlock is inspired by the character of the same name from Sir Arthur Conan Doyle’s Sherlock Holmes stories. In the original canon, Porlock appears in The Valley of Fear as a subordinate of Professor Moriarty. He acts as an informant, occasionally leaking information to Sherlock Holmes while maintaining ties to Moriarty’s criminal network.

William James Moriarty
Fred is one of William’s most trusted allies and serves as the group’s primary informant. Despite his quiet personality, Fred is deeply loyal to William and shares his ideals of reshaping society. He is one of the few members of the group who openly challenges William’s decision to sacrifice himself, believing that William’s life is too important to be lost, and secretly reaches out to Sherlock Holmes in an attempt to save him.

Sebastian Moran
Fred shares a close, almost brotherly bond with Moran. He looks up to him as an older brother figure and often works alongside him during missions. Moran, in turn, respects Fred’s skills and values his presence in the group.

Louis James Moriarty
Fred has a respectful and cooperative relationship with Louis. Though Louis confronts Fred after he contacts Sherlock behind the group’s back, Fred remains steadfast in his beliefs, demonstrating the trust and tension that exist within the group.

Sherlock Holmes
Fred’s relationship with Sherlock is primarily defined by opposition, but it evolves when Fred chooses to ask Sherlock for help in saving William. This act marks a turning point, showing Fred’s willingness to go beyond the group’s original plans for the sake of what he believes is right.