Wrench attended Brisbane Grammar School, the Queensland Conservatorium of Music and undertook postgraduate studies in Vienna at the Vienna Conservatorium and then at the Hochschule für Musik (with Michael Radulescu).
Christopher Columbus | Christopher Walken | Christopher Lee | Christopher Wren | Christopher Plummer | Christopher Reeve | Christopher Lloyd | Christopher Lambert | Christopher Kasparek | Christopher Hogwood | Christopher Marlowe | Christopher Hitchens | Christopher Guest | Christopher | Christopher Tolkien | Christopher Isherwood | John Christopher | Christopher Fry | Christopher Alexander | Christopher Kane | Christopher Hatton | Christopher Banks | Dennis Christopher | Christopher Wordsworth | Christopher Larkin | Christopher Cockerell | Christopher C. Kraft Jr. Mission Control Center | George Christopher | Christopher Wheeldon | Christopher Nolan |