Mamo, publicly known as Howard Lockwood, is the primary antagonist of the first Lupin the Third animated feature film. On the surface, he is presented as the world's wealthiest and most reclusive billionaire, controlling a vast multinational empire that spans transportation, steel, shipping, and media, and is said to possess roughly one third of the world's total wealth. This public persona serves as a cover for his true nature and his extensive archeological and scientific activities. In reality, Mamo is an ancient being who claims to have been born approximately ten thousand years ago in ancient Babylon. He is a genius scientist who achieved a form of functional immortality through cloning, continuously copying his own consciousness into new bodies to survive across millennia. However, this process is imperfect; each successive clone suffers from genetic degradation, causing physical deformities and eventual failure. His true original form is a massive, preserved brain housed in a life-support capsule, which controls his various clone bodies through telepathic or technological means. Mamo is a deeply isolated and weary figure, driven by a consuming obsession with achieving perfect, permanent immortality. He views ordinary human life and mortality as inferior and seeks to transcend it entirely, considering himself a prophet, a god, or the embodiment of ultimate wisdom. His motivation stems from a profound sense of boredom and disillusionment with humanity, having lived through and secretly influenced countless historical events and figures. He wants to find the Philosopher's Stone, a legendary artifact said to grant eternal life, to overcome the limitations of his cloning technique. He also seeks a suitable partner, ultimately choosing Fujiko Mine for her beauty, to help him repopulate the Earth after his plan to reset civilization. In the story, Mamo acts as the mastermind behind the plot. He hires Fujiko to steal the Philosopher's Stone and tests Lupin by manipulating him into obtaining it, evaluating whether the thief is worthy of being granted immortality. He serves as an intellectual and existential foil to Lupin, representing a desire for endless, controlled existence in direct opposition to Lupin's embrace of finite, thrilling adventure. His role escalates from a mysterious benefactor to a god-complex villain who attempts to destroy the world with nuclear missiles and flee to space to continue his existence. His key relationships are central to the narrative. With Lupin, Mamo is both an admirer and an adversary; he respects Lupin's skill and unpredictability, offering him a place in his eternal plan, but also engineers his death and clones him to prove his own power. With Fujiko, Mamo is possessive and transactional, offering her eternal youth and beauty in exchange for her loyalty and eventually her role as his consort. He employs a henchman named Flinch, a formidable enforcer, and has a brief but antagonistic relationship with Daisuke Jigen and Goemon Ishikawa, who actively work to destroy his plans. Inspector Zenigata pursues him indirectly through Lupin. Mamo undergoes little conventional character development in the sense of change, but his background reveals a tragic arc: he began as a brilliant scientist seeking to conquer death but degenerated into a lonely, virtually soulless entity, having lost any genuine human connection over the centuries. His final defeat by Lupin, culminating in his brain being cast adrift toward the sun, offers a sense of release from his endless, empty existence. Mamo possesses a range of notable abilities. He is a master geneticist and pioneer of cloning technology, capable of creating perfect physical duplicates of himself and even of historical figures such as Napoleon Bonaparte and Adolf Hitler. He demonstrates telepathic and telekinetic powers, such as communicating over distances, projecting illusions, and causing physical phenomena like earthquakes by destroying a nuclear facility. He is extremely wealthy and commands a private army and advanced technology, including a hidden island base and a spaceship. He is highly intelligent and knowledgeable, having accumulated ten thousand years of experience, making him a formidable strategist and manipulator. Despite his frail and grotesque appearance in his clone body, he is a dangerous adversary with seemingly supernatural capabilities.