Griffin Alexander Gluck (born August 24, 2000) is an American actor. On television, he is notable for his starring role as Charlie in Red Band Society and main role as Mason Warner on Private Practice and as Danny Gannon in Back in the Game. He also co-starred in both seasons of the Netflix mockumentary series American Vandal. In film, he has portrayed Rafe Khatchadorian in the film Middle School: The Worst Years of My Life. Gluck recently played Jack Dunkleman in Netflix original movie Tall Girl.