Olive Sturgess appeared in 12 episodes as Carol Henning, girlfriend to Bob's nephew, Chuck. Versatile character actress Kathleen Freeman appeared in six episodes as Bertha Krause. Perhaps the biggest career boost was received by young Dwayne Hickman, a student at Loyola University in Los Angeles, who appeared as the nephew and became a favorite with young female viewers. During the last season of "The Bob Cummings Show", he was cast as the lead in CBS's "The Many Loves of Dobie Gillis".