Mandy Moore Rebecca Pearson Actor Milo Ventimiglia Jack Pearson Actor Sterling K. Brown Randall Pearson Actor Chrissy Metz Kate Pearson Actor Justin Hartley Kevin Pearson Actor Chris Sullivan Toby Damon Actor Susan Kelechi Watson Beth Pearson Actor Ron Cephas Jones William Actor Eris Baker Tess Pearson Actor Alexandra Breckenridge Sophie Actor Faithe Herman Annie Pearson Actor Hannah Zeile Teenage Kate Pearson Actor Jon Huertas Miguel Rivas Guest Star Mackenzie Hancsicsak 10 Year Old Kate Guest Star Wendie Malick Mrs. Damon Guest Star Dan Lauria Mr. Damon Guest Star Lyric Ross Déjà Guest Star Caitlin Thompson Madison Guest Star Iantha Richardson Adult Tess Guest Star Reggie Watkins Shooter Guest Star Alan Heitz Rick Guest Star Angela Fornero Gretch Guest Star Jill Johnson Laurie Guest Star Alden Ray Stu Guest Star Sewell Whitney Vow Renewal Justice of the Peace Guest Star Kevin Covais Ice Cream Employee Guest Star Laura Leyva K&T Justice of the Peace Guest Star Dan Fogelman Executive Producer Jess Rosenthal Executive Producer Charlie Gogolak Executive Producer John Requa Executive Producer Glenn Ficarra Executive Producer