Cavril

Carvil is an unscrupulous, but spineless, merchant who has set up shop in the Gallows to buy anything that Ferelden refugees might be selling (so they can pay to enter the city).

Background
To set up his shop in the Gallows he had to bribe the city guards. In order to do this he went to Athenril, promising a share in his profits if they help him secure his spot.

Involvement
By the time Hawke arrives in Kirkwall he has a choice to work for Athenril or Meeren so that his/her group may enter the city. If Hawke decides to help the smugglers, Athenril will inform him/her that Carvil refuses to deliver what he promised her and sends Hawke to collect.

The player then has a choice to: Receive a bribe from Carvil, fight his guards to force him to pay, or have Aveline intimidate him

Result
Either fighting his guards or Aveline intimidating him will force Carvril to pay Hawke what he owes Athenril. Taking a bribe from him will force the player to go to work for the mercenaries because the smugglers will not take anyone who has double crossed them.