EXCLUSIVE: Heroes alumna Dawn Olivieri has landed a lead opposite Don Cheadle in the Showtime comedy pilot House of Lies. The dark comedy project written by Matthew Carnahan based on the book by Martin Kihn, centers on Marty (Cheadle), a self-loathing highly successful management consultant from a top-tier firm who is never above using any means (or anyone) necessary to get his clients the information they want. Olivieri, repped by APA and Mosaic, will play Monica, Marty’s crazy, pill-popping ex-wife and biggest professional competition as  her consulting firm is No.1 compared to Marty’s No. 2. House of Lies is one of 2 pilots greenlighted by new Showtime Entertainment president David Nevins, along with drama Homeland, which stars Claire Danes and Damian Lewis.