According to Dee Bradley Baker, the ending of "The Wrong Jedi" was kept a secret from all the voice actors except Ashley Eckstein and Matt Lanter. The other actors all received a script in which the final page was left blank and were asked to leave the studio when it came time to record the final scene. Baker did not find out what happened until it aired on television.
First episode where Tim Curry is credited as Chancelor Palpatine after original actor Ian Abercrombie's death. Curry went uncredited in both S5E1 "Revival" and S5E16 "The Lawless" for individual lines of dialogue.
The episode titles for this story arc are all plays on Alfred Hitchcock movies: Sabotage (Sabotage (1936)), The Jedi Who Knew Too Much (The Man Who Knew Too Much (1956)), To Catch A Jedi (To Catch a Thief (1955)), and The Wrong Jedi (The Wrong Man (1956)).
The Jedi Temple guards use double sided lightsabers which for the first time in the official canon emit yellow blades. A yellow blade had been used in the Kenner Toy line for the very first Luke Skywalker action figure in 1977 and many different colored blades appeared in various Dark Horse comics before Attack of the Clones established that Jedi generally only used blue and green blades (Mace Windu being an exception).
Even though work had begun on a sixth season, the Disney buyout of Lucasfilm resulted in this show's cancellation, leaving this to serve as a de facto series finale for several years, with Ahsoka Tano's ultimate fate left a mystery. The show was revived twice, once when Netflix paid to finish some of the unproduced episodes for its streaming service, and again on Disney Plus to give the show a proper finale. Ahsoka Tano has gone on to have an extended life in print and television.