It’s not completely clear exactly what parts the Last of Us HBO series will be adapting from the game. But the most recent casting gives slightly more insight into where the show might be going as it has just cast Storm Reid as Riley.
According to Deadline, Reid, known for her work in Euphoria and A Wrinkle in Time, will portray Riley Abel. Riley plays a seminal role in Ellie’s development and history, as seen in The Last of Us: Left Behind, an expansion from the first game that jumps between events set during the campaign and the past. The DLC was met with high praise. Riley was also in The Last of Us: American Dreams, the prequel comic penned by Faith Erin Hicks and Neil Druckmann.
It is unclear if the show will change the events pertaining to Riley’s involvement or if Left Behind will be shown through flashbacks. Regardless, she is just one of the many side characters that have been casted as Nick Offerman was recently confirmed to be playing Bill.