Guest Stars Lonnie Chavis as Young Randall Pearson Parker Bates as Young Kevin Pearson Mackenzie Hancsicsak as Young Kate Pearson Alexandra Breckenridge as Sophie Milana Vayntrub as Sloane Sandburg Hannah Zeile as Young Kate (15) John Pollono as Tyler Niles Fitch as Young Randall (15) Logan Shroyer as Young Kevin (15) Hari Dhillon as Sanjay Jahiri Adam Bartley as Duke Brittany Ishibashi as Tracy Co Starring Sophia Coto as Sophie (12 y/o) Cyndi Melendez as Kelsey Eric Michael Johnson as Drumming Instructor Devon Ogden as Leah Alex Marshall-Brown as Jess Casey Zwicker as Nerdy Kid
