The Stephens household is set on its ear when Samantha is put in charge of capricious ten-year-old warlock Merle Brocken (Craig Hundley). Upon discovering that the little visitor is from Sam's "world," Darrin makes the boy promise not to perform any magic during his visit. Merle obediently agrees, just before a burglar invades the house and overpowers Darrin.
James Doohan of
Star Trek fame plays Merle's father, Walker Brocken. Written by Paul David and John L. Greene, "A Strange Little Visitor" originally aired on December 2, 1965. ~ Hal Erickson, All Movie Guide