John F. Showalter
John Showalter has the unusual distinction of working as both a television director and an editor, including serving as both simultaneously on episodes of the CBS crime drama "Without a Trace", which he also produced. Showalter's career had modest beginnings, when he edited a single episode of "Entertainment Tonight" in 1981, and then didn't earn any credited TV work until 1990, when he cut a couple of TV documentaries. He continued to have spotty work through the 1990s, including editing a few episodes of the crime drama "Charlie Grace", starring Mark Harmon, along with a few more documentary programs. It was 2002 that was Showalter's breakthrough year, when he first edited a handful of episodes of the horror-mystery "Glory Days", which co-starred the actress Poppy Montgomery. Later that year, Showalter followed Montgomery over to "Without a Trace", serving as editor on several episodes of the FBI missing persons series, which debuted in the fall of that year, and in which Montgomery co-starred. By early 2004, Showalter made his debut as a TV director on the series, eventually directing 14 of the show's episodes and producing 21 of them into 2009. From 2005 on, Showalter had eclipsed his editing work with directing gigs. He has gone on to direct several episodes each of the CBS crime mystery "The Mentalist", and the fantasy horror "Supernatural", both in 2010 and 2011.