Answer
The answer is Harry Potter. Darren Criss played the role of Harry Potter in the musical parody "A Very Potter Musical", which was created by the University of Michigan's Starkid Productions and gained popularity on YouTube. The musical humorously retells the events of J.K. Rowling's "Harry Potter and the Sorcerer's Stone" with original songs and a lighthearted tone, while showcasing Darren Criss's impressive acting and singing talents.