We don't have a biography for Jeff "Dumpy" Kowalka yet. Hang in there, or go ahead and contribute one.
Appearances
Alphas
Guest cast, played by Jameson Kraemer
- Episode 2x01: Wake Up Call (Jul 23, 2012)
- Episode 2x09: The Devil Will Drag You Under (Sep 24, 2012)
- Episode 2x12: Need to Know (Oct 15, 2012)
- Episode 2x13: God's Eye (Oct 22, 2012)