Sean Grandillo is an American actor best known for his portrayal of The Voice of Otto/Bass in the fall 2015 revival of Spring Awakening on Broadway. Grandillo grew up in the town of Aurora, Ohio. He attended high school with fellow Broadway performer Kaley Ann Voorhees and was a member of a rock band at school. He has posted multiple covers of songs to his YouTube channel, as well. He attended Ithaca College and pursued a degree in musical theatre before dropping out to join the cast of Spring Awakening in Los Angeles. In 2015, Grandillo also released his first single, New, for sale on iTunes.