Joanna Kerns is a director for Fuller House. Joanna Kerns is an actress and director best known for portraying Maggie Seaver in Growing Pains. She is the younger sister of Olympic Gold Medallist swimmer Donna DeVarona. TVGuide has every full episode so you can stay-up-to-date and watch your favorite show The Love Boat Three women (Jane Curtin, Susan Heldfond, Joanna Kerns. THE LOVE BOAT nude scenes - 1 image and 0 videos - including appearances from "Betty White" - "Joanna Kerns" - "Teri Hatcher".