Debi Mazar

Debi Mazar will guest-star in the Season 2 premiere of TNT's HawthoRNe, TVGuide.com has learned exclusively.

Check out photos of Mazar

Mazar, an Entourage cast member and former Dancing with the Stars contestant, will play Donna Alberghetti, an old friend of chief nurse Christina Hawthorne (Jada Pinkett Smith). Mazar's character turns up at the hospital with an unidentified illness a few days before her wedding. The nature of the illness and the treatment raise some serious questions for Alberghetti's fiancé.

TNT picks up HawthoRNe for second season

Mazar, 45, is best known for tough-talking roles in films such as Goodfellas. She has a recurring role on Entourage as brassy publicist Shauna Roberts. Besides guest-starring roles on Ugly Betty and Castle, Mazar also competed in the ninth season of Dancing with the Stars.

HawthoRNe's second season premieres Tuesday, June 22 at 10/9c.