John_Showalter_(director)
John Showalter (director)
American television director and editor
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.
American television director and editor
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.
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