Jack Lord had a throat infection when they filmed the courtroom scene. He said it was the only time he got sick during the entire run of Hawaii Five-O.
On April 10, 1973, all three parts of "'V' For Vashon" were edited and rerun as a two-and-a-half-hour feature. CBS preempted its regular 8:30-11:00 programming for this special event.
John Stalker, who played attorney Harvey Mattheson Drew would appear again in the season eight episode, "The Case Against McGarrett", as an assistant warden..This episode centered around Honore Vashon putting McGarrett on trial for killing his son.
A fictitious newspaper with the name "The Telegraph" is seen on Dominick Vashon's desk.