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 Alan Thicke Himself Guest Star Andrew Santino Casey Guest Star Da'Vine Joy Randolph Tanya Guest Star Gerald McRaney Dr. Nathan Katowski Guest Star Richard Tanner Director John Guest Star Lisa Schurga Stage Manager Guest Star Mark Cohen Warm Up Guy Guest Star Brian Oblak Firefighter Guest Star Faithe Herman Annie Guest Star Eris Baker Tess Guest Star Yimmy Yim Marsha Guest Star Chris Grace Paul Guest Star Caitlin Thompson Madison Guest Star Alena Savostikova Model 1 Guest Star Jill Johnson Heavy Woman Actor Brandon Ford Green Waiter Guest Star Stefanie Malouf Randall's Co-Worker Guest Star Greg Christopher Smith Coach Guest Star Peter Bonilla Writer Guest Star Mario López Himself Guest Star Dan Fogelman Executive Producer Jess Rosenthal Executive Producer Charlie Gogolak Executive Producer John Requa Executive Producer Glenn Ficarra Executive Producer