Peter Willcock appears regularly at the Royal Opera House, Covent Garden and English National Opera choruses. Operatic roles include Escamillo and Zuniga (Carmen), Monterone (Rigoletto) and Aeneas (Dido and Aeneas) with Grange Park Opera, Pimlico Opera and Garsington Opera among others. For the ROH Linbury theatre he has performed in family operas including The Owl and the Pussy Cat.
Willcock also works as an animateur/workshop leader for Opera North, the Royal Opera House, Garsington Opera and Streetwise Opera, and is involved in numerous community projects.