Benjamin Lafayette "Ben" Sisko is a fictional character in the Star Trek franchise portrayed by Avery Brooks. He was the main character of the television series Star Trek: Deep Space Nine (DS9), which was originally broadcast between 1993 and 1999. A well known Human male Starfleet commanding officer who was perhaps best known for his seven-year assignment aboard starbase Deep Space 9 in the Bajor sector. After discovering the Bajoran wormhole, he became known to the Bajoran people as the Emissary of the Prophets. He played a critical role as a strategist and front line commander in the Dominion War.