The series about plane-crash castaways on a mysterious island resumes airing in 2008; filming of the fourth season is underway in Hawaii.

In the 2002 Tony Award-winning Thoroughly Modern Millie, Leung played Ching Ho, who worked with actor Francis Jue (as Bun Foo) to sell young women into slavery at the command of Mrs. Meers.

Leung had a notable recent turn as a mental patient on "The Sopranos" and has also appeared in the films "Rush Hour," "Keeping the Faith," "Red Dragon," "X-Men: The Last Stand," "A.I.: Artifical Intelligence" and "The Squid and the Whale," among others.

He also appeared in the Manhattan Theatre Club production of Terrence McNally's Corpus Christi, Ma Yi's Flipzoids and in Ghost in the Machine at the Perry Street Theatre, among other downtown productions.

Broadway and Off-Broadway actor Michael Emerson (Gross Indecency: The Three Trials of Oscar Wilde and Broadway's Hedda Gabler) shot to international recognition for his creepy and malevolent performance as the leader of islanders known as The Others on "Lost." "Lost" executive producers Damon Lindelof and Carlton Cuse told EW.com that in addition to Leung, new fourth season cast members will include Jeff Fahey ("The Lawnmower," "Grindhouse"), Jeremy Davies ("Saving Private Ryan"), Lance Reddick ("The Wire") and British actress Rebecca Mader ("The Devil Wears Prada," "Love Monkey").

No word on what roles the newcomers will play — "tailies," "others" or off-island flashback (or flash-forward) folk. If you feel "lost" reading these terms, the first three seasons of the hit ABC series are on DVD.