When Mandy Moore got engaged to Taylor Goldsmith this past week, her This is Us co-stars were thrilled for her, just like a real-life family. In fact, these guys are all so close they have a family group text. Justin Hartley told ELLE.com at the BAFTA pre-Emmy tea party in Beverly Hills on Saturday, ?The Mandy news is amazing." Hartley plays Kevin Pearson, Moore?s onscreen son and he is a big fan of her husband-to-be.