He joins the previously-announced Amanda Plummer, Michael Shannon, Amy Landecker and Reed Birney. Cullen was previously seen on Broadway in Bus Stop and Off-Broadway in Cobb.

Bug will reunite the Off-Broadway team of playwright Tracy Letts, producer Scott Morfee, and actors Plummer and Shannon. The quartet worked with success on the 1998's Killer Joe, which played to full houses at the Soho Playhouse.

Dexter Bullard, a known quantity in Chicago—Letts' stomping ground—but new to New York theatre circles, will direct.

Morfee's co-producers are Amy Danis and Mark Johannes.

The drama had its American premiere March 18, 2000, at the Woolly Mammoth Theatre Company in Washington DC. Wilson Milam, who staged the London premiere of Bug, helmed the DC run. Deborah Hazlett, Brian Hemmingsen, Kate Norris, Eric Sutton and Stephen Schmidt starred in the darkly quirky play about a 40-year-old woman named Agnes who hides from her ex-con husband in the motel outside Oklahoma City. While partying with a girlfriend, she meets Peter, who begins to see bugs everywhere. Letts' Killer Joe was first produced by Hired Gun Productions in Chicago. Its New York premiere came in 1994 at 29th Street Rep, where it ran for 12 weeks.

Joe has since been performed at the Edinburgh Festival, in London, Sweden, Norway, Spain, Australia and Germany, and in 1999 completed a successful Off-Broadway revival whose various casts included Amanda Plummer, Scott Glenn, Lori Petty and Michelle Williams.

Letts' latest play, Man from Nebraska, recently played Chicago's Steppenwolf Theatre Company.