DC

Saint Walker, a native of the planet Oa, is the first and most prominent Blue Lantern in DC Comics. Before becoming a Blue Lantern, he was a devout religious figure on his home world, known for his unwavering optimism even in the face of immense suffering.

He was chosen by the Blue Lantern power ring, forged by Ganthet and Sayd, exiled Guardians of the Universe, who saw his boundless hope as the key to combating despair and the power of the Red Lantern Corps. His ring draws its power from hope, and when in proximity to a Green Lantern, its power is amplified significantly, enabling powerful feats such as energy constructs and healing.

Saint Walker played a crucial role in various cosmic conflicts, including the Blackest Night. He consistently represents hope as a powerful force for good in the DC Universe, working alongside other Lantern Corps to maintain order and fight against threats to the emotional spectrum.