How old was Jon Knapp in…

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Jon Knapp was ? in She's Out of My League as 'Ex-Boyfriend (uncredited)'.

Movie Released: Thu, Mar 11 2010

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Ages in TV shows are based off the first air date and may not be accurate. View individual episode details for accurate ages

Jon Knapp was ? in Castle as 'Chauffeur'.

TV Show Released: First Air Date
Mon, Mar 09 2009

Jon Knapp was ? in Criminal Minds as 'Kyle Lincoln'.

TV Show Released: First Air Date
Thu, Sep 22 2005