WARNING: This article contains SPOILERS for Star Trek: Picard season 3, episode 4, "No Win Scenario."Star Trek: Picard season 3 has brought back the Changeling villains from Star Trek: Deep Space Nine, and they've undergone some significant changes in the years since the Dominion War ended. As they're plotting a revenge attack against the Federation, it makes perfect sense for the Changelings to adapt to cheat the security precautions introduced during the Dominion War. Picard has revealed that at least one Changeling has infiltrated Starfleet, when it impersonated Ensign Foster (Chad Lindberg) aboard the USS Titan-A.
