(Costume Design) Off-Broadway: PICKED (Vineyard Theatre), THE STARRY MESSENGER (The New Group), THE PRIDE (MCC), FAULT LINES (Naked Angels), FROM UP HERE (Manhattan Theater Club), LIBERTY CITY (NY Theater Workshop), SLUG BEARERS OF KAYROL ISLAND (Vineyard), THINGS WE WANT (The New Group), ELECTION DAY (Second Stage), JACQUES BREL IS ALIVE AND WELL ….(The Zipper), 9 PARTS OF DESIRE (MET), PEOPLE ARE WRONG! (Vineyard), BADDATES (Playwrights Horizons), JOHN FERGUSON (The Mint), WHERE DO WE LIVE (Vineyard), MASSACRE (LAByrinth), THE MYSTERIES (Classic Stage Company), ROAR (New Group), WHAT THE BUTLER SAW (The New Group). Regional: Cincinnati Playhouse in The Park, Goodspeed Musicals, Florida Stage, Huntington Theatre Co., Dallas Theater Center, Delaware Theater Co., Madison Rep., New York Stage and Film. OPERA: Washington National Opera (upcoming), Norwegian National Opera, Wolf Trap Opera, Staatstheater Wiesbaden (Germany), Opera Ireland, Bard Summerscape, Opera Colorado, FILM: Year of the Fish (Sundance 2007), Sovereignty and Shoplifting Chanel. Mattie was awarded the European Opera Prize in 2006.