 At the Orange Tree, Richmond, he starred as schizophrenic Victorian artist Louis Wain in Jane Coles' "Cat with Green Violin".He played De Brie in the original 1992 UK production of David Hirson's multi award-winning "La Bête" and Bassanes in John Ford's "The Broken Heart", both at the Lyric Hammersmith.In 1999, Treves lead the Singapore Repertory Theatre company production of "M. Butterfly" as Gallimard.