Yonatan was the husband of Roz, the patient in Don't Ever Change. He was portrayed by actor Eyal Podell. Yonatan was a lifelong Hassidic Jew and until his marriage to Roz, a bachelor. Roz was a recent adherent to Hassidism, having been born Jewish but having lived a largely secular life until six months previously. They were matched by a matchmaker and met shortly before they were married. However, at the wedding celebration, Roz started bleeding and collapsed.