Griffin Gluck stars as Mo in the new movie ‘Big Time Adolescence,’ which is out in theaters and on Hulu starting March 13. A seemingly bright and mostly innocent 16-year-old named Mo (Griffin Gluck) attempts to navigate high school under the guidance of his best friend Zeke (Pete Davidson), an unmotivated-yet-charismatic college dropout. Although Zeke genuinely cares about Mo, things start to go awry as he teaches Mo nontraditional life lessons in drug dealing, partying, and dating. Meanwhile, Mo’s well-meaning dad (Jon Cryer) tries to step in and take back the reins of his son’s upbringing. The movie also stars Emily Arlook and Machine Gun Kelly. In addition to ‘Big Time Adolescence,’ Griffin also starred in the first season of ‘Locke & Key,’ which is now on Netflix. He was previously best known for starring in two seasons of the critically-acclaimed ‘American Vandal.’ See more exclusive portraits of Griffin Gluck in our gallery now.