Kaitlyn

Kaitlyn is a human female found near the exit from the Redcliffe Chantry. She can give the A Missing Child side quest.

Background
Kaitlyn is sobbing and will reveal her mother was captured by the undeads besieging the village (see A Village Under Siege) and that her brother Bevin has gone missing. The Warden can offer to look for him, which opens the A Missing Child quest.

Initiating A Missing Child
The initial conversation with Kaitlyn can trigger approval reactions in the companions in your party. For instance, if the following characters are in the party:
 * Alistair: If the Warden jumps at the first opportunity to help ("I'll look for him."), Alistair will react with a ;
 * Sten: If the Warden selects the "Help? Are you ridiculous", Sten will react with a (but the Warden will not obtain the quest).

After The Attack at Nightfall
Aftermath of The Attack at Nightfall, Kaitlyn will remark that they are happy to be alive and will head to an orphanage; the Warden has an opportunity to offer her 500, 100, or 50 silver to reach relatives in Denerim via wagon instead.
 * 50 silver - insufficient; no approval effects
 * 100 silver - sufficient; approval effects (Alistair +1, Leliana +2, Morrigan -3, Sten +2, Wynne +1, Zevrain +0, others ???)
 * 500 silver - excessive; approval effects (Alistair 0, Leliana +4, Morrigan -5, Wynne +2, Shale 0, others ???)
 * - I don't know why (most probably because of insufficient funds), but I didn't get the option to pay 500, only 100 and less. For 100: Wynne +1, Allistair +1, Zevran +0 - and Kaitlyn moved to Denerim.

Result
Depending on the choices you made regarding her side quest, she may or may not play a part in the Epilogue. If you decide to pay her more than enough for her grandfathers sword, it is said that she uses the small fortune to open a foundry in Redcliffe. She becomes wealthy, respected, and meets Bann Teagan at court by chance. She marries him months after that.