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| John F. Showalter | |
| Aliases: | John Showalter |
| Gender: | Male |
| Medium(s): | Television |
| Roles: | Director |
| Notable works: | Alphas Threshold |
As a director[]
- Alphas: A Short Time in Paradise
- Arrow: Broken Hearts
- Constantine: A Feast of Friends
- Legends of Tomorrow: Left Behind
- Flash: The Sound and the Fury
- Flash: Family of Rogues
- Flash: Back to Normal
- Supergirl: Bizarro
- Threshold: The Burning
- Threshold: Vigilante
Notes & Trivia[]
See also[]
External Links[]
References[]
 This article relates to actors or production crew members pertaining to the Alphas franchise. This template will categorize articles that include it into the Alphas crew members category. |