Former Six Feet Under star Jeremy Sisto is going from troubled bipolar sufferer to detective in hit crime drama LAW + ORDER. The Clueless actor, 32, will play a detective in the next season of the NBC show, replacing departing Milena Govich. Sisto, who played Brenda's brother Billy Chenowith in Six Feet Under, appeared in the season finale of Law + Order last month (May07) as a defence attorney. Law + Order creator DICk Wolf says, "I've watched Jeremy's career evolve and grow, and I am absolutely thrilled that he has decided to join Law + Order."