Fred MacMurray Steve Douglas Actor Tim Considine Mike Douglas Actor Don Grady Robbie Douglas Actor Stanley Livingston Chip Douglas Actor William Frawley Michael Francis "Bub" O'Casey Actor Jena Engstrom Guest Star Grace Albertson Guest Star Andrew Colmar Guest Star Sally Hughes Guest Star Sandra Downs Guest Star Don Fedderson Executive Producer Arnold Peyser Writer Lois Peyser Writer Richard Whorf Director