'Young Rock' TV Review: Critics React to Dwayne Johnson's NBC Sitcom Dwayne Johnson revealed his early days through NBC's new sitcom, "Young Rock", and critics quickly served what they thought of the series. On Tuesday, the most-awaited sitcom about the life of Johnson arrived on NBC. The former professional wrestler collaborated with Nahnatchka Khan to create the whole project. The team cast three different actors to portray the role of Johnson at three different stages of his youth. Adrian Groulx plays the role of the 10-year-old Johnson. Meanwhile, Bradley Constant and Uli Latukefu scored the roles for the 15-year-old and 20-year-old version of the actor, respectively.