Emily Wickersham upped to series regular on "NCIS"

It's official: Emily Wickersham is joining the CBS hit "NCIS" full-time.

Emily Wickersham arrives at the premiere of Summit Entertainment's "Gone" on Feb. 21, 2012 in Los Angeles, Calif. Getty Images

Wickersham was cast in the role of NSA analyst Eleanor "Ellie" Bishop back in September, but wasn't made a series regular until CBS announced the news Monday.

"Emily Wickersham's Ellie Bishop is proving to perfectly compliment the 'NCIS' team," said Executive Producer Gary Glasberg. "Her energy and enthusiasm is contagious. Great things are planned for Bishop and we couldn't be more thrilled to have her on board."

Her first episode will air on Nov. 19, and she will be filling an empty series regular spot on the show since Cote de Pablo's Ziva character left the series on the second episode of the current season

According to CBS, Wickersham's character, Ellie Bishop, will be introduced when it is discovered the Secretary of the Navy was bugged during a confidential briefing, a security breach Bishop described two years ago in a threat analysis report. Working side-by-side with Gibbs and the team, Bishop cross-examines the case file to help determine who is behind the crime.

The 11th season of "NCIS" airs Tuesdays, 8-9 PM ET on CBS.