John CallahanActingNo biography available.Known ForFan ClubNo Nerds have favorited John Callahan yet — be the first.All fan clubsFrom NerdspinFilmographyActor32023UFOs: Investigating the UnknownTVSelf - FAA Division Chief, Retired 2011 • 1 episodes★ 7.12011Thrive: What on Earth Will it Take?FilmSelf★ 5.72011UFOs on the RecordFilmSelf - Former FAA Division Chief★ 8.0
