Special Guest Stars Jennie Garth as Kelly Taylor Shannen Doherty as Brenda Walsh Guest Stars Jessica Lowndes as Adrianna Tate-Duncan Christina Moore as Tracy Clark Adam Gregory as Ty Collins James Patrick Stuart as Charles Clark Maeve Quinlan as Constance Tate-Duncan Michael Graziadei as Eric Chandra West as Gail McKinney Michael Piccirilli as Antonio Garrett Karina Logue as Reeve Conlon Jelly Howie as Erica Tanc Sade as Tom Moreno Co Starring Riley Thomas Stewart as Sammy McKay