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 Janet Montgomery Olivia Maine Guest Star Milana Vayntrub Sloane Sandburg Guest Star Elizabeth Perkins Janet Malone Guest Star John Rubinstein Ron Schiller Guest Star Peter Onorati Stanley Pearson Guest Star Gerald McRaney Dr. Nathan Katowski Guest Star Laura Niemi Marilyn Pearson Guest Star Kiff VandenHeuvel Dave Malone Guest Star Darren Barnet Young Jack Guest Star Ava Castro Young Rebecca Guest Star Michael Albala Dr. Schneider Guest Star Julia Cho Jill Guest Star Floyd Vanbuskirk Jack's Boss Guest Star Nefetari Spencer Nurse Guest Star Duncan Bravo Dr. Singh Guest Star Jeffrey Muller ER Doctor Guest Star Char Sidney Nurse 1 Guest Star Dan Fogelman Executive Producer Jess Rosenthal Executive Producer Charlie Gogolak Executive Producer John Requa Executive Producer Glenn Ficarra Executive Producer