Dean Winters Dean Winters

On the Law & Order: SVU finale, Capt. Cragen will defend an old colleague who hasn't been on the show in more than a decade.

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Season 1 star Dean Winters returns on Wednesday's episode as Det. Brian Cassidy, now an undercover cop who is involved in the team's latest case. "It looks like he could be a little shady, and it's up to Cragen to say, 'I know Brian and he's a good cop,'" Dann Florek tells Unfortunately, Det. Amaro (Danny Pino) doesn't quite believe him. "It's contentious with Amaro," Pino says. "Dean's character is not as affable as Amaro would like."

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In the video below, Florek and Pino talk more about the Season 13 finale. Plus: Ice-T shares a message for any fan who threatened to stop watching the show after Christopher Meloni's departure. (Hint: He doesn't like you.)

Watch our exclusive behind-the-scenes video from Dean Winters' return:

The Law & Order: SVU finale airs on Wednesday at 10/9c on NBC.