The scene is a discussion between Vargo and Jaime Lannister. The audition video will contain SPOILERS if you have not read A Storm of Swords. The dialogue also contains references to Jaime’s difficulties with reading, as mentioned this season. The actor’s audition shows no signs of a lisp, which I suspect we’d see if it was mentioned in the casting character description. So I think Vargo’s speech impediment may have been phased out.
Ours is the Fury: Great news! I hope we see a whole band of creepy “Brave Companions” next season.