Warning: SPOILERS for Star Trek: Picard Season 3, Episode 3 – "Seventeen Seconds"Star Trek: Picard season 3, episode 3, "Seventeen Seconds," answers a lingering question from Star Trek: Deep Space Nine's finale about what happened to Odo (Rene Auberjonois), DS9's heroic Changeling. Star Trek: Picard season 3's third episode concluded with a dual reveal that the story's villains are Changelings from DS9's Dominion. But it was the B story of Worf (Michael Dorn) and Raffi Musiker (Michelle Hurd) interrogating a Changeling named Titus Rikka (Thomas Dekker) that yielded a big reveal about Odo.
Constable Odo was a Star Trek: Deep Space Nine series regular for all seven seasons. A shapeshifter who was isolated from his people, Odo became the Chief of Security of Deep Space Nine, first working for the Cardassians and then for the Bajoran Militia and Starfleet. A stern believer in justice, Odo was a deeply complicated and emotionally torn individual. Throughout the course of DS9, Odo learned he is part of the Founders of the Dominion, but he stood against his people during their effort to conquer the Alpha Quadrant. Odo also fell in love with Major Kira Nerys (Nana Visitor). When the United Federation of Planets won the Dominion War, Odo chose to return to his people to cure the Great Link of the fatal disease implanted by Section 31. Odo was canonically never seen again after DS9's series finale, "What You Leave Behind."
