"Betty White set to guest star on <em>The Middle</em> Betty White just keeps racking up the work, with a new guest-starring appearance on a hit new ABC series. According to The Hollywood Reporter, Betty White will guest star on the season finale of The Middle.

White will play the school librarian who approaches Brick (Atticus Shaffer) about the many overdue library books he has yet to return. The news comes just one day after it was confirmed that White will host Saturday Night Live for the first time in her career, with a special Mother's Day edition to air May 8.

It was said that White's season-finale episode of The Middle will start shooting next week. The series, which airs on Wednesday nights at 8:30 PM ET on ABC, stars Patricia Heaton, Neil Flynn, Charlie McDermott, Eden Sher and Chris Kattan.