They later split up in Season 15, mostly on good terms, which made his return in this season’s premiere all the more surprising.
Dean Winters’ Brian Cassidy was part of Law & Order: SVU’s original cast, serving as Munch’s partner.
And by the end of his next episode, we’ll know whether or not he’ll be able to return in the future.
His complicated relationship with Benton started way back then in the form of a one-night stand, though it didn’t pick back up again until another dozen years or so had passed.