Dailan

Dailan was a Dwarf who was a leader or in charge of the last stand of Kal'Hirol. He's most notable for convincing some 200 Casteless Dwarves to assist in the suicidal battle. The final days of Kal'Hirol and Dailan's impact on events can be witnessed in Dragon Age: Awakening by the player

Last Stand of Kal'Hirol
During the First Blight, several Thaigs were overrun by Darkspawn. It became clear that Kal'Hirol would soon be one of them and evacuations were prepared. Within days, however, it was realized that there would be no time to plan and the evacuation took place without warning. Dailan volunteered to be part of a group that remained behind to hold the Darkspawn back, giving the refugees a chance to get to Ozrammarr.

Two days after the evacuation, Dailan realized that about 500 Casteless had been abandoned. Dailan, feeling that the guard would fail, proposed to the casteless that they join with him in the suicidal battle, and attempted to galvanize them by suggesting they prove they are not as worthless as Dwarven Society claimed. Despite opposition amongst some of the Casteless, approximately 200 volunteered for the duty. It is not known what happened to the others though at least a few attempted to find a route to the surface.

The army held back the Darkspawn for 5 days, inspiring Dailan to stop using the term Casteless to refer to his comrades-in-arms. Inspired, Dailan felt it imperative to record the names of all who stood as part of the defense Kal'Hirol, being slain by an Ogre as he finished.