He stood for the plebeian tribunate in 104 BC but was unsuccessful; after his consulship, he may have been the Gaius Cassius which was to assume supreme command against the Marians in the Bellum Octavianum.
In 104 BC, he ran for the plebeian tribunate but failed. Following his consulship, it is possible that he was Gaius Cassius, who later took charge against the Marians in the Bellum Octavianum.