Aktor:
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1. The Twilight Zone (1959), seriale...Anthony Fremont
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2. DIMMI LA VERITA' (1961), Film...Neil Bateman (uncredited)
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3. Sammy, the Way-Out Seal (1962), Film
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4. A Child Is Waiting (1963), Film...Boy Counting Jean's Pearls
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5. E Dashur Brixhitë (1965), Film...Erasmus 'Ras' Leaf
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6. Të humbur në hapësirë (1965), seriale...Will Robinson
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7. Rascal (1969), Film...Sterling North
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8. Bless the Beasts & Children (1971), Film...Teft
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9. Papijon (1973), Film...Lariot
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10. Biography (1987), seriale...Self - Narrator
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11. Captain America (1990), Film...Young General Fleming
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12. The Flash (1990), seriale...Roger Braintree
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13. Double Trouble (1992), Film...Bob
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14. Babylon 5 (1993), seriale...Lennier
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15. Shockwave (2006), Film...Major Heath
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...Self - Narrator
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17. Toon in with Me (2021), seriale...Self - Narrator
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18. Babylon 5: The Road Home (2023), Film...Lennier (voice)
Zeri:
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1. Babylon 5: The Road Home (2023), Film...Lennier
Skenaristi:
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2. The Twilight Zone (2002), seriale...(story by)
Narratori:
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1. E! True Hollywood Story (1996), seriale