We don't have a biography for Sgt. 'Jumbo' Turnbull yet. Hang in there, or go ahead and contribute one.
Witchblade Guest cast, played by Johnie Chase Episode 1x03: Diplopia (Jun 26, 2001) Episode 1x06: Maelstrom (Jul 17, 2001) Episode 2x01: Emergence (Jun 16, 2002) Episode 2x02: Destiny (Jun 16, 2002)