Brok Dalingar was a Leonidar soldier serving Lieutenant Celen Fell during the Battle of Fiara. In SpellForce: The Order of Dawn he was guarding a bridge east of Liannon leading to the portal to the Shiel.
When the future Phoenix Bearer came across the path, he warned her about an ancient evil at the eastern mine. Some undead ghosts were supposed to come back to live there and one should be wary in dealing with them.