Have a saved game file from Dragon Age: Origins.
Occasionally if you approach the Hanged Man with Isabella in your party, she will say "Ahh The Hanged Man. Sometimes you wanna go where everybody knows your name", which is a reference the opening lyrics of the theme to the television show Cheers.
Created by XCVii007r1.
During a random conversation between Fenris and Varric, Fenris asks him "Who is Bianca?" When Varric tells him it is a crossbow, Fenris says that he must have named it after someone, to which Varric replies, "Nope, Mirabelle was taken", a reference to the rifle owned by Sir Roderick Von Fontlebottom The Magnificent Bastard from Jade Empire.
During random companion dialogue in the city between Anders and Isabella, she mentions that abominations are easy to escape because they make loud noises like "Grr Argh", which Anders refutes saying "Abominations to not go Grr Argh". During the ending credits of Buffy The Vampire Slayer, Joss Whedon's "Mutant Enemy Productions" credit screen shows a little monster which says "Grr Argh?"