The Cobalt Sentries (コバルトセントリー Kobaruto Sentorī) are the elite "public safety unit" of the Decepticon Secret Police and internal affairs investigation unit. They work without restriction, weeding out any possible traitors and moles. Most Cobalt Sentries are said to sport distinctive blue armor, Barricade being the most striking exception.

The Cobalt Sentries include:


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