With the fall TV season set to begin over the next few weeks, many of the networks have started releasing images from the first few episodes.  While most of the pictures are your standard fare, featuring the main cast standing around, NBC has released some images from the 4th season of Chuck and included are our first looks at Linda Hamilton as Mary Bartowski (Chuck's mom) and Olivia Munn as "Greta".  The premiere also features Dolph Lundgren and Harry Dean Stanton.  Hit the jump for more:

While most people never thought Chuck would make it, as a huge fan, I'm extremely happy they're getting a 4th season.  Also, while most shows go for gimmick casting and it shows, I love the way Chuck has brought in geek friendly actors for reoccurring roles on the show.  They've previously had Scott Bakula as Chuck's dad, Kristin Kreuk as a former love interest, Bruce Boxleitner as a Dr., and Brandon Routh as another CIA agent.

Anyway, the 4th season premiere is called "Chuck vs. the Anniversary" and it airs September 20, 2010.  Here's the synopsis:

When the CIA gains control over the Buy More, Chuck begins searching for his mother (Linda Hamilton). Also guest starring Dolph Lundgren, Harry Dean Stanton, and Olivia Munn as Greta.

It should be a lot of fun seeing Linda Hamilton kicking ass again.  Here are the pictures.