When Maddie returned to Los Angeles near the end of the fourth season, the writers tried to recreate the tension between Maddie and David by having Maddie spontaneously marry a man named Walter Bishop (Dennis Dugan) within a few hours of meeting him on the train back to Los Angeles. When Shepherd read the script, she strongly voiced her objection that her character would not do such a thing, but was overruled. The move failed to rekindle the sparks between the main characters or capture the interest of the audience, which led to an even further ratings decline.