The actor introduced the world to his newborn baby girl with a sweet post to Instagram on Sunday.
‘This Is Us’ series finale airs tomorrow night on NBC.
The ‘This Is Us’ finale airs Tuesday, May 24 on NBC.
The 'This Is Us' star shared the exciting news on Thursday.
Metz, Moore, Justin Hartley and Sterling K. Brown dish to ET on the questions they're excited for fans to get answers to.
‘This Is Us’ airs Tuesdays on NBC.
The stars spoke with ET's Nischelle Turner about adding their personal touch to Tuesday's episode and being directed by Mandy Moore.
ET chats with Chris Sullivan at the premiere for the sixth and final season of 'This Is Us,’ premiering Jan. 4 on NBC.
Joshua Bassett, Chris Sullivan and Garth Brooks also took part in the epic surprise.
ET's Keltie Knight spoke with the 'This Is Us' actor about the exciting birth of his newborn son, Bear Maxwell Sullivan.
ET spoke with the 'This Is Us' star about his new son, new song and more!
The 'This Is Us' star is officially a dad!
ET sat down with the actress, where she teases what's next for Toby & Kate in Season 4 of 'This Is Us', which airs Tuesdays on NBC.
Chris Sullivan and his wife, Rachel Reichard, are going to be parents!