Keith is a central character in the Voltron: Defender of the Universe television series, serving as the commanding officer of the Voltron Force. His full name is Keith Kogane, and he is renowned as the pilot of the Black Lion, the powerful lion robot that forms the head, torso, and upper legs of the super robot Voltron.

In terms of background, Keith is the leader of a team of explorers sent by the Galaxy Alliance to the planet Arus. After his team's ship is shot down by the forces of the evil King Zarkon from Planet Doom, they are captured. Following a successful escape, Keith and his crew find their way to the Castle of Lions, where they meet Princess Allura and her advisor Coran. It is there that they are organized into the Voltron Force to defend Arus from the ongoing threat of the Galra Empire.

Keith's personality is defined by a calm and thoughtful demeanor. Unlike more boisterous members of his team, he is a quiet individual who spends a significant amount of time reflecting on his decisions and developing new strategies for the team. He is often found reading books in his spare time, either in the pilot's lounge or in his quarters. Despite his reserved nature, he is a decisive commander when action is required.

His primary motivation is the protection of Arus and the defeat of King Zarkon and Prince Lotor. He feels a deep sense of responsibility for his team and for the success of their mission. Keith cherishes Princess Allura greatly and is notably protective of her. His personal feelings create a distinct animosity towards the evil Prince Lotor, as his worst fear is the prospect of Allura being forced to marry him. This dynamic establishes a strong rivalry between Keith and Lotor, who first meet face-to-face in a duel outside the Castle of Lions.

As the leader of the Voltron Force, Keith’s role is to command the team in battle and pilot the Black Lion. He serves as the tactical and emotional anchor for the other pilots, which include Lance, Hunk, Pidge, and Princess Allura. His relationship with Allura is particularly significant, developing from one of protector and charge to a deep, mutual affection.

In terms of abilities, Keith is a highly skilled pilot, capable of commanding the most important component of Voltron. Beyond his piloting skills, he is also a proficient martial artist. Various adaptations of the character, such as the Devil's Due comic series, expand on this by depicting him as a veteran and a dojo instructor with expertise in multiple forms of martial arts. This combat training makes him a formidable opponent even when not inside his lion. His development throughout the series sees him grow from a capable soldier into a wise and dependable leader, fully earning the trust and loyalty of his team.