Popsugar Entertainment This Is Us This Is Us Season 3 Cast Here Are All the New and Returning Stars For This Is Us Season 3 24 August 2018 by Kelsie Gibson View On One Page Photo 5 of 22 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 5 Lonnie Chavis as Randall Though he wasn't a series regular during season two, it's likely that Chavis will return as young Randall next season. Previous Next Start Slideshow This Is UsTV