Production Credits
John F. Showalter has 27 production credits.
Directing
Credited for Director in 25 shows -
Cold Case,
House,
Supernatural,
Threshold,
Criminal Minds,
Ghost Whisperer,
Viva Laughlin,
The Mentalist,
Nikita,
Fairly Legal,
Alphas,
Unforgettable,
Revolution,
Arrow,
Sleepy Hollow,
The 100,
Forever,
The Flash,
Constantine,
Supergirl,
DC's Legends of Tomorrow,
Timeless,
Frequency,
S.W.A.T. and
The Winchesters.
Production
Credited for Co-Executive Producer in 1 show -
Supernatural.
Editing