Heidi Marnhout was born and raised in San Diego, California and has been acting in stage productions since the early age of six. She majored in theater at the University of Colorado and subsequently graduated from the American Academy of Dramatic Arts in Los Angeles.Her first cinematic role was in Roadkill (1996), an independent film made by one of the F/X technicians of the Phantasm movies. The director, D. Kerry Prior, introduced her soon after to Don Coscarelli when he was looking for an actress for the next Phantasm installment. Impressed by her beauty and acting skills, Heidi got the part of "Jennifer" in Phantasm IV: Oblivion (1998).Apart from performing onstage in several Noël Coward plays, Heidi starred in Vice Girls (1997) and reunited again with Don Coscarelli and Reggie Bannister portraying a brief role in Bubba Ho-Tep (2002). Most recently, Ms. Marnhout appeared in Plane Dead (2007).While not working on feature films, Heidi Marnhout is a veteran on TV productions, showing her talent in several prestigious series such as Angel (1999) and CSI: Miami (2002), as well as in several TV movies.