People.com Celebrity Parents 'The Flash' 's Grant Gustin and Wife LA Thoma Expecting First Child: 'Unbelievably Excited' The pair tied the knot in December 2018 By Benjamin VanHoose Benjamin VanHoose Twitter Benjamin VanHoose is an Associate Editor on the Movies team at PEOPLE. He's worked at PEOPLE for over three years as a writer and reporter across our Entertainment, Lifestyle and News teams, covering everything from the Johnny Depp v. Amber Heard trial to the Oscars. He regularly covers red carpet events and has interviewed stars like Drew Barrymore, Ryan Reynolds and Kirsten Dunst. He previously worked as a copy editor at Topix Media Lab. People Editorial Guidelines Published on February 12, 2021 01:09 PM Share Tweet Pin Email Photo: Getty Grant Gustin is on his way to being a super dad! The Flash actor, 31, and his wife LA Thoma are expecting their first child together, they revealed on Instagram Thursday. The pair, who tied the knot in December 2018, announced the news smiling alongside their three dogs. "Unbelievably excited ❤️ As LA noted, the dogs obviously are too," Gustin captioned his post, as she wrote on her page while sharing the same snapshot, "Adding one more to the crew! The pups are thrilled :)" Gustin's famous friends shared congratulatory messages in the comment section, including several Glee costars, like Chris Colfer, who wrote, "Congrats, Grant! So happy for you! ❤️." Added Melissa Benoist, "Yayyayaayyyyy!!!" while Matthew Morrison said, "It all begins! Enjoy, my friend." "Yeah buddy!!! Congratulations! Get your sleeping in now... Cause it's gone soon," commented Robbie Amell, who welcomed a son in September 2019. Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories. RELATED GALLERY: Who's Due Next? Celebs Who Are Expecting Gustin and Thoma, a doctor of physical therapy, announced their engagement with a photo on Instagram in April 2017 where Thoma showed off her ring as the duo, both smiling ear to ear, embrace on the beach. The couple dated a little over a year before getting engaged. Celebrating their two-year wedding anniversary in December, Gustin wrote on Instagram: "Love you more now than I did then. Truly. You inspire me to be better every day. Whether that means doing the dishes in a timely manner or just having more confidence in myself." He added, "I don't know who I'd be without you."