Sean Kleier is an American actor whose career has seen him traverse both television and film, leaving a notable mark on the indie scene. One of his standout performances can be found in the 2013 film *Mastodon*, which has garnered a cult following among collectors for its unique blend of dark humor and poignant storytelling. The film's limited physical media releases, particularly on Blu-ray, are prized by enthusiasts who appreciate its offbeat narrative and Kleier's compelling portrayal. Kleier's versatility extends beyond *Mastodon*, as he also portrayed the enigmatic Agent Stoltz in Marvel's *Ant-Man and the Wasp* (2018), a role that has increased his visibility in the collector community. His involvement in projects like *Odd Mom Out* has further cemented his status, making his appearances in physical media sought after by fans of both comedy and superhero genres. Collectors admire Kleier not just for his roles, but for the unique projects he chooses, often highlighting the importance of indie cinema in the broader film landscape.