Star Trek: Discovery featured several interesting antagonists. Jason Isaacs' Gabriel Lorca is a subtle, fascinating trickster from the Mirror Universe. Osyraa and the Emerald Chain are almost hilariously sinister in their business dealings. Species 10-C raises compelling questions about what villainy means in the context of advanced beings. One of the most straightforward antagonists in the series is Control, the threat assessment program in Section 31. It's a classic premise, but Control's unique execution brings something worth talking about to Star Trek: Discovery.