Benedict Cumberbatch opened up to Us Weekly about his wedding plans to fiancee Sophie Hunter in NYC on Tuesday, Nov. 18 Credit: Dimitrios Kambouris/WireImage.com for CNN

Sherlock may keep his wedding a complete secret! Benedict Cumberbatch briefly opened up about his impending nuptials to fiancee Sophie Hunter during the CNN Heroes event in NYC on Tuesday, Nov. 18.

"I think I'll be having a very private wedding," the 38-year-old told Us Weekly on the red carpet.

The Flying Horse actor took the old-fashioned route when he announced his engagement to actress Hunter, 36, in The Times of London earlier this month.

"Mr B.T. Cumberbatch and Miss S.I. Hunter," the announcement read on Nov. 5. "The engagement is announced between Benedict, son of Wanda and Timothy Cumberbatch of London, and Sophie, daughter of Katharine Hunter of Edinburgh and Charles Hunter of London."

The soon-to-be spouses stepped out following the news for Cumberbatch's Imitation Game NYC premiere on Nov. 17. There, Hunter showed off her eye-catching halo set diamond ring.