Aktor:
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1. Hell Is for Heroes (1962), Film...Pvt. Driscoll
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2. The Tonight Show Starring Johnny Carson (1962), seriale...Self - Guest Host
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3. Fractured Flickers (1963), seriale...Self
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4. Hot Millions (1968), Film...Willard C. Gnatpole
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5. Catch-22 (1970), Film...Major Major
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7. The Bob Newhart Show (1972), seriale...Dr. Robert 'Bob' Hartley
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8. Little Miss Marker (1980), Film...Regret
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9. Newhart (1982), seriale...Dick Loudon
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10. Bob (1992), seriale...Bob McKay
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11. Svengoolie (1995), seriale...Dr. Robert 'Bob' Hartley
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12. Jashtë e Brenda (1997), Film...Tom Halliwell
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13. Ligjërisht bjonde 2 (2003), Film...Sid Post
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14. ELF (2003), Film...Papa Elf
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15. Bibliotekari (2004), Film...Judson
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...Judson
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17. The Big Bang Theory (2007), seriale...Arthur Jeffries
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...Judson
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19. Kill the boss (2011), Film...Lou Sherman
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20. Pesë (2011), Film...Dr. Roth
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21. The Librarians (2014), seriale...Judson
Zeri:
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1. The Rescuers (1977), Film...Bernard
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...Bernard
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...Leonard the Polar Bear