New Delhi, July 7 -- Mariska Hargitay received a heartfelt surprise from her husband, actor Peter Hermann, during the final performance of her Broadway debut in Every Brilliant Thing, bringing an emotional close to the actress's acclaimed run in the one-person play.

The Law & Order: Special Victims Unit star took her final bow in the production at New York City's Hudson Theatre on Sunday evening after a six-week engagement that marked her first appearance on Broadway. During the performance, Hermann made a surprise cameo as Sam, participating in a pivotal scene that culminates in a marriage proposal.

The moment blurred the line between performance and reality, with Hermann, to whom Hargitay has been married since 2004, kneeling on stage...