Entertainment TV Sterling K. Brown Gets Birthday Wishes from This Is Us Costars: ‘Grateful to Know You’ Mandy Moore, Chrissy Metz and Chris Sullivan all shared sweet messages for the actor as he turned 48 By Bailey Richards Bailey Richards Bailey Richards is a writer-reporter at PEOPLE. She has been working at PEOPLE since 2023 and interned with the brand in 2022. Her work has previously appeared in digital publications like Paper Magazine and TV Insider. People Editorial Guidelines Published on April 6, 2024 12:40PM EDT Close 'This Is Us' stars Mandy Moore, Sterling K. Brown and Chrissy Metz. Photo: Frank Micelotta/Disney via Getty; Emma McIntyre/Getty; Rachel Luna/WireImage Sterling K. Brown is raking in the birthday love from his This Is Us family! The Emmy winner, who portrayed Randall Pearson on the hit NBC series, turned 48 on April 5. While celebrating the milestone, Brown received several sweet social media tributes from his former This Is Us castmates, including the actress who portrayed his on-screen mom Rebecca Pearson-Rivas, Mandy Moore. Sterling K. Brown Says His This Is Us Role Has Inspired Fans to Adopt Children — and Quit Their Jobs! On Instagram, Moore, 39, shared several photos of herself and Brown together, from pictures at parties to behind-the-scenes selfies. “Happy Birthday to my fellow Aries,” she wrote. “Grateful to know you and that you exist to share your infectious energy and talent with the world, @sterlingkbrown. Love you!!” Justin Hartley Still Gets 'Ridiculous' Texts from His This Is Us Costars: 'I Love Them' (Exclusive) Chrissy Metz, who played Brown’s on-screen sister Kate Pearson, also chimed in with some birthday love for the actor. In an Instagram post, Metz, 43, shared some cute BTS pictures — and some adorable shots of the pair interacting at events — along with a message for the Oscar nominee. "Happy birthday to this wonderfully funny and incredible human being!” the actress wrote. “Thank you for all the joy and talent you bring into the world. I hope your day and year are full of love and light!” Alongside Metz’s post, which he reposted on Instagram Stories, Brown responded, “Love you, Sister!” Sterling K. Brown's This Is Us Costars React to His Oscar Nomination: 'No One More Deserving' Chris Sullivan, who portrayed Toby Damon on This Is Us, also shouted out Brown on his special day. In an Instagram post, Sullivan, 43, shared a photo of the pair together, which he captioned, “Happy Birthday to the MAN, the MYTH, the LEGEND…❤️” In the comments section, Brown reciprocated the love, writing, “My Man! ✊🏿” 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. The cast of ‘This Is Us’ in 2022. Jon Kopaloff/Getty Images Acknowledging his own birthday on Instagram, the American Fiction star shared a video, thanking his pals for the messages — and lamenting that the milestone fell on “leg day.” “Ya boy has received a lot of birthday love,” Brown said in the clip, adding that he’s “48 years young” and “feeling good.” “#BlessedAndHighlyFavored,” he added in the caption. “#ThanksForTheLove.”