Dark Shadows Main cast, played by David Ford Episode 1966-08-12: DS-35 (Aug 12, 1966) Episode 1967-04-12: DS-207 (Apr 12, 1967) Guest cast, played by Mark Allen Episode 1966-07-01: DS-5 (Jul 1, 1966) Episode 1966-07-05: DS-7 (Jul 5, 1966) Episode 1966-07-11: DS-11 (Jul 11, 1966) Episode 1966-07-12: DS-12 (Jul 12, 1966) Episode 1966-07-22: DS-20 (Jul 22, 1966) Episode 1966-07-26: DS-22 (Jul 26, 1966)