Criminal Minds executive producer Erica Messer wants to assure you that Jeanne Tripplehorn's Alex Blake will not stir up trouble in the BAU.
Tripplehorn will make her debut on the Season 8 premiere, filling the void left by Paget Brewster's Emily Prentiss, who exited in the season finale. And though Messer previously described Alex as a "threat" to the team, she clarifies that it's merely a case of a newbie joining a tightknit group.
"Anytime there's a very close coworker environment, as we have here, it's hard," Messer tells TVGuide.com. "There's just a natural hesitation to accept, but in that friendly way. She certainly doesn't have an ulterior motive or anything."
What else can we expect from Alex? Get the scoop on her and more below.