William O’Brien is a Bass-Baritone originally from New Zealand, and a recent graduate of the San Francisco Conservatory of Music having completed a Master of Music in Vocal Performance. He is also an alumnus of the Berlin Opera Academy (2021) and New Zealand Opera School (2019, 2018). William has performed with New Zealand Opera in a number of their national productions. His recent roles include Publio (La Clemenza di Tito), Achilla (Guilio Cesare) and The Pig (The Enchanted Pig), among others. He is excited to be making his debut with Prague Summer Nights.