You are all handpicked agents of Leliana AKA Sister Nightingale AKA The Nightingale. Although you are spies you are not there mainly to watch, she has scouts for that, you take a more active role. You are the people she gets to infiltrate bases, steal information, convince the enemy to do something stupid. Social skills will be important in this game so I expect at least average Deceive and Rapport . Investigate and contacts are also going to be useful. Don't worry at all about resources as Leliana has the resources of the Inquisition and will give you whatever you need. You start with a standard beginning character.
The Herald of Andraste is Ellana Lavellan who is a female elf mage. She is a beautiful woman with long brown hair and penetrating brown eyes. You won't meet her much but it will influence the game. She can and will make mistakes from time to time and a lot of her decisions may be controversial even with the players.
Some things I do will conflict with the computer game. Some will be accidental , some deliberate. Part of this is to keep you guessing. They will be mostly things you find on the war table in the computer game.