WEISS: Well, Lord Bolton is in a difficult position.
If Robb Stark knows he's losing this war
and that his allies are falling by the wayside,
then Lord Bolton definitely knows it.
Yet he's still loyal to Robb Stark,
so he finds himself between a rock and a hard place.
As soon as Roose starts to believe
that Robb's not going to win this war,
I think he's looking for an escape plan.
And also realizing that if Robb were to lose and to die
then the Starks have been essentially wiped out,
because Bran and Rickon are missing, presumed dead,
well, that leaves an opening for a new Warden of the North.
This scene makes us look at the other past scenes with Roose Bolton
in a new light.
When Jaime and Roose are having dinner at Harrenhal
and talking with each other,
is a key chapter in Roose's decision.
I should send you back to Robb Stark.
But instead, you're sitting here, watching me fail at dinner.
Why might that be?
At that point I don't think Roose is completely committed yet.
He's trying to decide which side he's going to come down on.
And he's been presented with Jaime whose hand has been cut off
by men who are ostensibly fighting for him.
So he's concerned,
"Am I going to be held responsible for maiming Lord Tywin's favorite son?"
A Lannister always pays his debts.
I think Roose at that point started to wonder,
"What's the best way to manipulate this to my advantage?"
MARTIN: Roose is really feeling out Jaime in that scene.
There's a lot of careful dialogue in that sequence.
There's two men. Neither one really saying what they're saying.
WEISS: When Jaime leaves Harrenhal
and he tells Roose to send Robb Stark my regards,
and Roose's last line to Robb is that the Lannisters send their regards.
You don't have to wait until episode 10 to realize who is really behind this.
Although if you're caught up in the shock of the moment,
that might not be apparent to you.
In the book it's, "Jaime Lannister sends his regards."
And that was actually the original line in the script
and then people started coming up to us and asking us questions.
Nikolaj, for instance, (LAUGHS) who plays Jaime Lannister says,
"Wait. Was I involved with this plot?"
And then Roose Bolton said,
"Does this mean that Jaime was the one who told me to do this?"
And all these other people who read the script and who were quite immersed in this world
were confused thinking that it meant that Jaime was the one that orchestrated this.
Which obviously wasn't the point.
So, hence the minor change from "Jaime Lannister" to "The Lannisters."