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John F. Showalter | |
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| Other names | John Showalter |
| Occupation(s) | Television director, editor and producer |
| Years active | 1981–present |
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 .
Showalter's directing credits include Ghost Whisperer , House , Criminal Minds , Without a Trace , Supernatural , The Mentalist , Supergirl , and The Flash, as well as editing episodes of Lois & Clark: The New Adventures of Superman , Gideon's Crossing , Glory Days , Timeless, and The 100 . [1]
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