Jack Weston guest stars as Gladys Kravitz's brother, Louis. A former musical prodigy, Louis gave up the violin after an embarrassing Carnegie Hall debut 30 years earlier. Samantha takes it upon herself to restore Louis' self-confidence. This episode marked the final appearance of Alice Pearce as Gladys Kravitz; Pearce died on March 3, 1966, "Prodigy" aired three months later, on June 9, as the last episode of Bewitched's second season. ~ Hal Erickson, Rovi