Special Guest Stars Henry Winkler as Arthur Fonzarelli Guest Stars Mary Treen as Nana Shotz Richard Stahl as Mr. Marshall Stewart Kathryn Ish as Mrs. Marshall Stewart Co Starring David L. Lander as Andrew J. "Squiggy" Squigman Michael McKean as Leonard "Lenny" Kosnowski Lyman Ward as Tad Shotz Robert Ball as Butler Bob Brunner as Foreman
