William Thomas is an English bass opera singer. He is a graduate of the Opera Course at the Guildhall School of Music and Drama. Some of his credits include: Nicholas in the British premiere of Samuel Barberâs Vanessa at the Glyndebourne Festival, Shepherd PellĂ©as et MĂ©lisande for Garsington Opera, Snug in A Midsummer Nightâs Dream at the Vienna State Opera, Zweiter Priester/Zweiter Geharnischter Die Zauberflöte for Glyndebourne, and Colline La