By Margaret Lyons
Updated January 12, 2011 at 02:45 PM EST

Jeremy Piven (Entourage) and Mike O’Malley (Glee) have joined the cast of the Miley Cyrus action comedy, So Undercover. Piven will play a special agent and O’Malley will play Cyrus’ father; Cyrus stars as a private investigator who goes undercover in a sorority. [Variety]