 In nine episodes, real-life child barbershop quartet The Osmond Brothers portrayed the singing sons of the Kissel family, all with given names of books of the Old Testament, Alan Osmond as Micah Kissel, Merrill Osmond as Deuteronomy Kissel, Jay Osmond as Lamentations Kissel, and Wayne Osmond as Leviticus Kissel.Michael Witney in fourteen episodes portrayed the first wagon master, Buck Coulter, with his last appearance in "The Day of the Pawnees, Part 2" (December 29, 1963).Witney was replaced by Bronson in the next episode.