Robert Wagner will guest-star as Tony's father in the 150th episode of NCIS, TVGuide.com has confirmed. Tony and his dad will reunite in the episode, which is slated for January.
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An added layer to the casting is that Michael Weatherly, who plays Tony, portrayed Wagner in the 2004 TV movie The Mystery of Natalie Wood.
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Other patriarchs who have stopped by the series include Michael Nouri as Ziva's father and Ralph Waite as Gibbs' dad.