richard grieco 22 jump street cameo '22 Jump Street': Richard Grieco making cameo appearance?

With production on “22 Jump Street” complete, it should come as no surprise there will be at least one cameo from the original “21 Jump Street” TV series. After all, the first movie has appearances by Johnny Depp, Peter DeLuise and Holly Robinson Peete.
Radar Online reports Richard Grieco will reprise his role as Detective Dennis Booker from the series after secretly filming a cameo. “It was so cool to see Richard back in action,” a source says. “He even cut his hair for the role and brought back some of his iconic swag items, which you’ll see when the movie comes out.”
Grieco isn’t the only cameo lined up for the movie, as Radar also claims Brad Pitt with make an appearance as a school librarian. “22 Jump Street” is scheduled for a June 13 release, with Channing Tatum and Jonah Hill returning as stars.