Some of my favorite characters are coming back for Inquisition unfortunately you can not have them in your party. Morgana will be back serving as the arcane adviser to Empress Celene in Orlais Alistiar- which was always my favorite character in origins will be back . Depending on your choices in the origins game he could be King of Ferelden. Anora: Who was the widowed queen in Origins could be the queen of Ferelden depending on what choices you made in Origins. Hawke who was in dragon age 2 is being searched for by Cassandra and at some point found I'm kind of glad to be seeing them again. Even if I wont get to play any of the characters.
I'm quite happy as well, I really liked having Alistair during my play-through since I never actually play tanky, I usually go for more of a glass-cannon approach. I'm a bit sad that Morrigan will not be available as a companion, though.
I do know that Morrigorn is back, not sure how big her role is in this game. In my game of Dragon Age Origins, Alastair was made king and married to Queen Anora. I would like to know what happened to the baby, I had with Morrrigorn and what is the child doing.