Cast Credits Doctor Who (1963) Guest starring as Staff Sergeant Arnold (6 episodes) Episode 5x28: The Web of Fear, Part Six (Mar 9, 1968) Episode 5x27: The Web of Fear, Part Five (Mar 2, 1968) Episode 5x26: The Web of Fear, Part Four (Feb 24, 1968) Episode 5x25: The Web of Fear, Part Three (Feb 17, 1968) Episode 5x24: The Web of Fear, Part Two (Feb 10, 1968) Episode 5x23: The Web of Fear, Part One (Feb 3, 1968) View 3 more View 3 less