Mandy Moore has joined the series, starring opposite Christopher Meloni and William H. Macy. Her casting brings her back together with This Is Us creator Dan Fogelman, who is writing and executive producing the show. (The other Hulu series Fogelman created, Paradise, also features a This Is Us alum in Sterling K. Brown.)

He most recently created the Hulu series Paradise, which stars Sterling K. Brown. Now, Fogelman is set to reunite with another TIS alum, Mandy Moore, though they won't be collaborating on Brown's aforementioned show.

"This is Us" collaborators Mandy Moore and Dan Fogelman are reuniting for an as-yet-untitled Hulu series. Moore joins Christopher Meloni and William H. Macy.