Dog Alien is a unique character from the anime series Uchuu Kaizoku Captain Harlock. This character is often seen as a mysterious and enigmatic presence aboard the spaceship Arcadia. Despite its unusual appearance and alien nature, Dog Alien is considered a loyal companion to Captain Harlock and his crew. Its role in the series is primarily as a silent observer, providing a touch of mystery and intrigue to the storyline. Dog Alien's presence signifies the diverse and inclusive nature of Harlock's crew, emphasizing themes of unity and camaraderie in the face of adversity.