Born in Palm Beach Gardens, Florida, Matthew Mercer's formative years were steeped in imaginative play and a burgeoning love for storytelling. This early exposure to fantasy narratives and character development laid the groundwork for his future career, with Dungeons & Dragons quickly becoming a defining passion.

Before hitting mainstream success, Mercer honed his voice acting skills through smaller roles in various projects. He also dedicated time to improv training, recognizing the importance of quick thinking and character embodiment, skills that would become crucial to his improvisational game mastering style and voice acting range.