"It is going to be great," she assured Usmagazine.com during the weekend. "The fans have been wanting this for a long time."
Doherty will again play Brenda Walsh, a stage actress who returns to West Beverly High as a guest director for the school's musical, the entertainment news Web site said.
"She is a huge part (of the show,)" Tori Spelling said. "Any original cast member is huge to the fans. She was there from the beginning. She was '90210.' Shannen and Jason (Priestley) -- they were the Walshes."