Jeremy Piven and Carla Gugino Jeremy Piven and Carla Gugino

Season 3 of HBO's Entourage, premiering in June, may find Ari out in the cold. The New York Post hears that Jeremy Piven's abrasive agent may have client and "Aquaman" star Vincent Chase (Adrian Grenier) stolen out from under him by a sexy rival to be played by Threshold babe Carla Gugino for six episodes. An HBO rep tells the paper, "We don't comment on plotlines."