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  1. John F. Showalter is an American television director and editor. He is well known for his work on Without a Trace, The Mentalist and Supernatural .

  2. John F. Showalter is known for The Winchesters (2022), Timeless (2016) and Revolution (2012).

    • Director, Editor, Producer
    • John F. Showalter
  3. Feb 1, 2023 · John F. Showalter was a director for Supernatural season 5 through to 15, making him one of the longest recurring directors that the show has had. He was also a Co-Executive Producer in Season 15. In 2022, he became a producing director for The Winchesters

  4. View the profiles of people named John Showalter. Join Facebook to connect with John Showalter and others you may know. Facebook gives people the power...

  5. Specialty. Internal Medicine.

    • (865) 584-4747
  6. Dr. John Showalter, MD, is an Internal Medicine specialist practicing in Knoxville, TN with 27 years of experience. This provider currently accepts 40 insurance plans including Medicare and...

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  8. John F. Showalter is a director of the series Supernatural . Showalter has also directed episodes of Threshold, Shark, Viva Laughlin and Without a Trace .

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