Legate Broca was a male Cardassian military officer serving in the 24th century Cardassian Union. He came to power in the 2370s under Dominion rule, during which he was the third and final military leader.
In 2375, Broca was a high-ranking gul. He was picked by Weyoun to succeed Damar as the new leader in 2375 following Damar's defection and founding of the Cardassian Liberation Front. Broca was subsequently promoted to legate. Unlike his strong-willed predecessors, Damar and Dukat, Broca was eager to follow the orders of the Female Changeling and Weyoun almost without question. (DS9: "The Dogs of War")
After the Cardassian fleet switched sides due to the destruction of Lakarian City, Broca pleaded with Weyoun and the Female Changeling to let him talk to the rebels to persuade them to remain loyal. Instead, Weyoun and the Female Changeling concurred that it was just as likely for the rebels to convince Broca to defect. Still shouting that he was loyal to the Dominion, Broca and his aides were taken outside Dominion Headquarters by the Jem'Hadar and executed. Ironically, this gave an opportunity for Damar's rebels to penetrate the building and ultimately capture the Female Changeling, as well as kill Weyoun. (DS9: "What You Leave Behind")