John F. Showalter

2005–2016 YEARS ACTIVE

Titles 8

DC's Legends of Tomorrow

DC's Legends of Tomorrow January 21, 2016

Supergirl

Supergirl October 26, 2015

Constantine

Constantine October 24, 2014

The Flash

The Flash October 7, 2014

The 100

The 100 March 19, 2014

Arrow October 10, 2012

Criminal Minds

Criminal Minds September 22, 2005

Supernatural

Supernatural September 13, 2005