Comandante Vallenar is a disgraced comandante with the Chilean navy. Vallenar is in the customs office on Puerto Williams when Glinn, McFarlane, and Captain Britton arrive to make arrangements to mine ore on Isla Desolacion. Vallenar suspects that the Rolvaag is after gold on Isla Desolacion that belongs to Chile. Vallenar follows the Rolvaag to Isla Desolacion and makes veiled threats against them as he sits and watches their mining operation.