download the appSign up to get the inside scoop on today’s biggest stories in markets, tech, and business — delivered daily. Read previewWhen "Law & Order: Special Victims Unit" returns to screens for its landmark 25th season this week, it will continue to reign as television's longest-running drama series. This story is available exclusively to Business Insider subscribers. To celebrate, stars of the series, both past and present, gathered together in New York City for a special party on Tuesday evening. And special it was, as fans of the NBC police drama have waited years to see some of the series' cast back together again.

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Persons: —, Mariska Hargitay, Peter Scanavino, Dann Florek, Raúl Esparza, Stephanie March, Richard Belzer, John Munch Organizations: Service, Business, NBC Locations: New York City