 Bill Walsh maintained Amsberry's contract with Disney until September 1957, and Amsberry appeared on Disney's Hardy Boys television serial installment "Mystery of Ghost Farm", which premiered on September 13, 1957.His voice work also appears in "Sleeping Beauty" (1959) as one of Maleficent's goons.On the morning of November 21, 1957, Amsberry was involved in a car accident as a passenger with Roy Williams, another Disney employee, in Portland.