Jonathan Kaye's name is misspelled on the nameplate as "Jonathon Kaye."
The name of the Governor of the State of Hawaii is revealed for the first time in the series. The nameplate at a meeting reads Paul Jameson.
Wo Fat admits that his complicated scheme to frame McGarrett with a double was extremely expensive and was in the works for three years. This is puzzling because Wo Fat tried very hard to have McGarrett killed just two years earlier ("A Bullet for McGarrett" from Season 2).
The official syndication number for this episode is 7117.
Tim O'Connor appears as Jonathan Kaye in this episode. Joseph Sirola played the part of Jonathan Kaye in episodes from Seasons 2, 3 and 5.