Glumac:
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1. Fame (1980), film...M.C.
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2. Author! Author! (1982), film...Seth Shapiro
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3. Lice s ožiljkom (1983), film...M.C. at Babylon Club
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4. The Wrong Guys (1988), film...Belz
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5. Autoput straha (1988), film...Dr. David Lazarus
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6. Fletch živi (1989), film...Phil
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7. Munja (1990), serija...Joe Kline
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8. U bekstvu (1991), film...Milt Zoloth
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9. Jedna žena i dva muškarca (1993), film...M.C. / Comic
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10. Hart to Hart: Crimes of the Hart (1994), film...Det. Frank Giordano
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11. Gospodari lutaka (1994), film...Jarvis
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12. Totally Bill Hicks (1994), film
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13. Princ na jedan dan (1995), film
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14. Obitelj Brady 2 (1996), film...LAPD Detective
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15. Putovanje života (1996), film...Rick
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16. Girl 6 (1996), film...Caller #4 - Beach
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17. Kriminalističke priče (1998), serija...Self - Actor, Co-Author 'Hit List'
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18. Čovjek na Mjesecu (1999), film...Richard Belzer
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19. Law and Order - Special Victims Unit (1999), serija...Detective John Munch
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20. Polish Bar (2010), film...Hershel
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21. Metodično ludilo Jerrya Lewisa (2011), film...Self
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22. Nježna izdaja (2013), film...Richard
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23. Američke mračne tajne (2013), serija...Self - Actor, Co-Author 'Hit List'
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24. Komičar (2016), film...Richard Belzer
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25. Abel Ferrara: Uživo u Francuskoj (2017), film...Self
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26. Gilbert (2017), film...Self - Actor, Co-Author 'Hit List'
Producent:
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1. Nježna izdaja (2013), film...executive producer