Susan Saint James guest stars as Kate's hyperjudgmental mother Lynn, who celebrates her daughter's birthday by taking Kate (Christa Miller), Drew (Drew Carey) and Lisa (Kay Selverstone) out to dinner. Throughout the evening, Kate is hesitant to tell Lynn that she is dating Jay (Robert Torti), but "helpful" Lewis (Ryan Stiles) shows up and spills the beans. Concluding that Jay is merely seeing Kate to get over the trauma of his recent divorce, Lynn proceeds to make her daugher's life even more miserable than usual. This episode is highlighted by a pivotal drunk scene between Kate and Drew, as well as a wacked-out vignette wherein Lewis tries to become the legal guardian of his roommate Oswald (Diedrich Bader). ~ Hal Erickson, Rovi