Ed O'Neill and Brian Van Holt have joined the cast of the drama, John From Cincinnati for HBO.

The show from David Milch revolves around the dysfunctional Yost family of Imperial Beach, Calif., led by patriarch Mitch (Bruce Greenwood), whose life is disrupted by the arrival of the dim but wealthy John (Austin Nichols) from Cincinnati, a savant who has come to take surfing lessons, and Barry Cunningham, who is returning to Imperial Beach to avenge a wrong done to him by the Yosts 23 years ago. The Hollywood Reporter says O'Neill will play Bill, a friend of the Yost family and a former Marine; Van Holt will play Mitch's son Butchie.

Look for John From Cincinnati to begin airing next year.