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Marcos Siazon
Gender: Male   Male
Status: Arrested.
Portrayed by: Eric Steinberg
 First Appearance
  ●   NCIS: Under Covers (episode).
 Last Appearance
  ●   NCIS: Under Covers (episode).
List of Appearances

Marcos Siazon was a ruthless contract killer responsible for ordering the deaths of husband and wife assassin team, Jean-Paul Ranier and Sophie Ranier.

BiographyEdit

Pre-SeriesEdit

NCIS Season 3Edit