Watch Nip/Tuck Season 7 Episode 6. Dr. Griffin. This week’s patient portrayer will be Daniel Benzali. Other guest stars on Nip/Tuck Dr. Griffin episode are Melonie Diaz as Ramona, Brian Howe as Ron Mark, Molly Price as Dahlia Mark, and Elaine Kagan as Dr. Karen Singer. On this episode, Sean and Christian reveal secrets and lay bare past pains as they begin psychotherapy together. On the other hand, Liz and Matt take part as well, and divulge secrets of their own.