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 Denis O'Hare Jessie Guest Star Jon Huertas Miguel Rivas Guest Star Alexandra Breckenridge Sophie Guest Star Milana Vayntrub Sloane Sandburg Guest Star Hari Dhillon Sanjay Jahiri Guest Star Niles Fitch 15 Year Old Randall Guest Star Logan Shroyer 15 Year Old Kevin Guest Star Hannah Zeile 15 Year Old Kate Guest Star Eris Baker Tess Pearson Guest Star Faithe Herman Annie Pearson Guest Star Ken Lerner Brandon Novak Guest Star John Pollono Tyler Guest Star Amanda Leighton 15 Year Old Sophie Guest Star Julia Cho Jill Guest Star Anthony Marciona Pench Guest Star Megan West Heather Guest Star Bill Chott Mailman Guest Star Ron Howard Himself Guest Star Dan Fogelman Executive Producer Jess Rosenthal Executive Producer Charlie Gogolak Executive Producer John Requa Executive Producer Glenn Ficarra Executive Producer