Dawn Olivieri (born on 8 February 1981) is an actress who has appeared in a number of television shows and feature films. She most recently has been cast as "Monica Talbot" in the new series House of Lies. Wrapping up the 4th season on Heroes as the Tattooed Temptress "Lydia", she has also completed parts on TBS's My Boys, NBC's Knight Rider, TNT's Trust Me, and SyFy's Stargate: Atlantis, and recurred on CBS's How I Met Your Mother. Dawn is a lead in the SyFy movie HYDRA, and she is the voice of Pepper Potts in the new Avengers animated series scheduled to air this fall (2010) on Disney XD. she also appeared in Maxim issue of October 2009. Olivieri appeared on HBO's Entourage on September 13, 2009, and hosted a contest on Scripped. She most recently voiced in the video game, inFamous 2 as Lucy Kuo.