Biddle Coleridge, or B.C., was a Human male in the 21st century on Earth. Coleridge was a resident of Sanctuary District A in San Francisco in the 2020s, where he was a "ghost", with a tendency toward violence and thievery.
In 2024, Coleridge was a leader of a group of ghosts who terrorized many other residents of the District. He came across Starfleet officers Benjamin Sisko and Julian Bashir, who had become trapped in the past, and eventually attacked them for their ration cards. In the fighting, Gabriel Bell tried to help Bashir, and Coleridge killed him.
Soon, riots started, later known as the Bell Riots. Coleridge attacked and captured the processing center for the District. Sisko, posing as Bell, allied with him to take control of the situation. Coleridge hoped to bargain the hostages for his release from the Sanctuary District and travel to Tasmania, home to his idol, Errol Flynn, but Sisko convinced and coerced him to do more, demanding an end to the Districts altogether. At several times during the siege, Coleridge came close to attacking the hostages, and it was only through Sisko's intervention that none of them died.