Photo: Bruce Glikas/Getty

NEW YORK, NEW YORK - NOVEMBER 12: Ken Ithiphol and Anthony Rapp pose at The Museum of Broadway Opening Night at The Museum of Broadway on November 12, 2022 in New York City. (Photo by Bruce Glikas/Getty Images)

Anthony Rappis showing major gratitude to a very special person who helped make his dream of fatherhood a reality.

On Saturday, theStar Trek: Discoverystar, 51, shared a stunning set of professional photos featuring himself and fiancéKen Ithipholposing with their then-pregnant gestational surrogate, Nikki. (Nikki carried the couple’s sonRai Larson, whom they welcomed on Dec. 2.)

“Ken and I couldn’t close out 2022 without sharing one of the biggest highlights of our year. We had the absolute honor and pleasure of getting to know, and share many meaningful and joyful moments with,our gestational surrogate, Nikki,” Rapp began his caption on the post, which featured snapshots of Nikki showing off her bump — including one of the then-dads-to-be with their hands on her belly.

The actor went on to call Nikki “truly one of the most incredible and awe-inspiring human beings we have ever met, and she and her family have profoundly transformed our lives.”

“Ken and I feel so lucky and are forever thankful. 💙,” Rapp concluded.

RELATED GALLERY:Famous Families Who’ve Welcomed Children Through Surrogacy

“Ken and I are thrilled to share that our family has grown!” theRentactor began in his caption.

Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human-interest stories.

“HALLELUJAH !! Welcome home, Rai!” his fellowRentoriginalBroadwaycast memberDaphne Rubin-Vegacommented, whileLauren Lapkuswrote, “Congratulations!!”

The proud parentsannounced their engagementin November 2019 after Rapp popped the question to Ithiphol, a leadership coach, social researcher and advocate, following nearly four years together.

“So something happened tonight. I asked@teerakeniif he wouldmarry me and he said yes. I am so very happy, and I’m so very thrilled to share this news,” he wrote on Instagram at the time.

source: people.com