Roscoe
Rogue · New Camp
"You, my man, got stones."
Lares's gate
Roscoe guards access to Lares, refusing entry to the Hero unless he has a very good reason to bother him. When the Hero arrives with a supply list taken from the Old Mine, Roscoe is stunned, blurting You ... what? Is that a joke?
He correctly guesses that Thorus sent him, noting Thorus would absolutely lose it if he knew the Hero were here, and reacts with amusement on learning it was actually Diego's idea, figuring Diego would be laughing his ass off. Satisfied, he lets the Hero through to see Lares.
Mordrag's ring
When the Hero mentions that Mordrag sent him, Roscoe is surprised the man is still around, asking whether he didn't turn coat after all, and asks the Hero to pass along that Lares wants to see him. Learning the Hero also carries a ring from Mordrag meant for Lares, Roscoe waves him on in.
More than a request
When the Hero asks outright to join the gang, Roscoe brushes him off: You and a hundred others, mate. If you want in here, you're gonna have to give me more than that.
What other NPCs say
Lares asks where Roscoe is when the Hero appears in the camp, implying that Roscoe is part of the expected chain of contacts. His importance comes from this routine assumption of presence: he belongs to the New Camp's inner workings even when no one pauses to give a formal introduction.