Trivia: Tony's father is played by Robert Wagner. Michael Weatherly previously played Wagner in a 2004 TV movie about Wagner's wife Natalie.
Trivia: In the season six episode "South by Southwest", Tony mentions the film Scent of a Woman and leading co-star Chris O'Donnell. O'Donnell made a special guest appearance later in the season as G Callen, in the crossover episode that introduced the characters of NCIS: Los Angeles.
Broken Bird - S6-E13
Trivia: The two actors playing Mr. Pain are father and son, William Morgan Sheppard and Mark Sheppard.
Answer: I hadn't seen the backdoor pilots yet but while it wasn't explicitly stated, at least onscreen, I heard somewhere Vivian got either fired from NCIS due to jeopardizing a case, got resigned from the agency, or transferred to the FBI.
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