The "Criminal Minds" Season 8 premiere will introduce viewers to Alex Blake, the newest BAU member. Played by "Big Love" veteran Jeanne Tripplehorn, Alex will meet some of the other characters for the first time in the premiere episode titled "The Silencer."
In "The Silencer," a Texas prisoner escapes during a transfer and he's got a unique signature: sewing his victims mouths shut.
Tripplehorn's character is a linguistics expert and professor at Georgetown.
Take a look at photos from the premiere in the slideshow below.
"Criminal Minds" Season 8 premieres Wed., Sept. 26 at 9 p.m. ET.