2018 ยท Denise Richards gave a memorable turn as Cassie Geller in Friends (Picture: NBC) Hollywood actress Denise Richards has notched up some memorable roles in her career, from turns in Bond. Denise Richards plays Cassie Geller, Ross and Monica's cousin who is visiting for the wedding. It all gets a little weird when Chandler, Ross and Phoebe all get heart eyes for her and can't stop.