Accidentally Correct Writing: In "Prehysterical Pet", Steggy frequently shifts from quadruped to biped. It is now known stegosaurs could rear up on their hind legs to feed from small trees and high-growing plants, although they were still strict quadrupeds.
Corey Burton voices Dale, Zipper, and both Mole and Snout from Fat Cat's gang.
Rob Paulsen voices most of the supporting roles and one-shot characters who aren't voiced by Cummings. Most notably he voices both Detective Drake and Percy, Klordan'es dimwitted henchman, in the five-part pilot.
In "Gadget Goes Hawaiian," the title of which is a pun on the classic beach comedy Gidget Goes Hawaiian, Lahwhinie is voiced by Gidget herself (well, one of them, at least), Deborah Walley.
"A Chorus Crime" has guest star Carol Channing playing Canina LaFur, star of the musical Hello Doggy, alluding to Channing's most famous role as the title character in the original Broadway production of Hello, Dolly!.
In "A Wolf in Cheap Clothing", a minor rabbit character is played by Tress MacNeille using her voice for Babs Bunny.
Celebrity Voice Actor: Kathleen Freeman as Ma in "Short Order Crooks"; Deborah Walley as Buffy Ratskiwatski ("Out of Scale"), Lahwhinie ("Gadget Goes Hawaiian"), and Foxglove ("Good Times, Bat Times"), Carol Channing as Canina LaFur ("A Chorus Crime" and "They Shoot Dogs, Don't They").
Cowboy BeBop at His Computer: Whoever wrote the official German descriptions for the show and the episodes in particular had no idea what they were about. At all. Zipper is sometimes described as female although we could probably name two episodes which could show them otherwise even without any audio), Monty is sometimes named by his English name, sometimes by his German name, Gadget is sometimes named by her German name, sometimes by Gosalyn's German name (which she was definitely not given in any language), and so forth.
For no apparent reason, the shot of Chip acquiring his hat in Part 2 of the pilot is missing from reruns, the DVDs andDisney+.
"The Pied Piper Power Play" was largely re-cut to remove a deaf-mute character named Mouseo—a parody of Harpo Marx—that Disney execs felt was a negative stereotype. At least half the story is changed by his removal. He returns in the Disney+ version of the episode. There was also a removed scene—brought back in Disney+—where Dale tries to hypnotize Monty with his acorn pendulum and then Monty eats it.
Toon Disney rather awkwardly recut episodes to change where they fade out for commercial breaks. These, unfortunately, were the cuts used for the DVD.
"A Lean on the Property," whose plot revolves around leveling skyscrapers, was pulled from reruns for several years after 9/11. It was later reinstated on Disney+.
Many of Gadget's angry lines in "Dirty Rotten Diapers," in which the Rangers take on a midget criminal posing as a baby, were redubbed when the censors feared they would bring about complaints of child abuse: "Trash the brat!" was changed to "Trash the bum!" and "Let's shake that baby 'til he rattles!" was changed to "Let's shake that bum 'til he rattles!" Ironically, this was one of the few examples of bowdlerization that Toon Disney didn't keep, instead airing the original cut.
The original airing of "Puffed Rangers" had a rather jarring amount of Yellow Peril jokes, including crooked Japanese auto executive villains who spoke in stereotypically Asian English and some tactless lines about China and Chinese culture. Not surprisingly, it was deemed so racist upon revisitation that the villains' lines were redubbed to be less stereotypical and many of the jokes were either also redubbed or outright removed.
Executive Meddling: As mentioned above, the show was originally going to be a spinoff of The Rescuers, but Jeffery Katzenberg didn't want it interfering with production on The Rescuers Down Under. It was then heavily retooled into a completely original cast, but Michael Eisner only wanted established Disney characters to headline their shows, so it was retooled yet again into a Chip n Dale reboot instead.
Keep Circulating the Tapes: As mentioned above, several episodes' original cuts haven't aired since their original broadcast, and while the show got a DVD release of its first two seasons, with the entire series later getting added to Disney+, it hasn't been reran on television, network or cable, for decades.
Missing Episode: For several years, "A Lean on the Property" was banned in the USA post-9/11 due to its plot about leveling skyscrapers. It was eventually made available for streaming and online purchase.
No Export for You: The Season 2 DVDs and most of the merch available in the USA can hardly be acquired anywhere in Europe (or anywhere else in the world) other than on eBay.
The Other Darrin: Monterey Jack was voiced by Peter Cullen in Season 1. Beginning with the five-part origins episode "To The Rescue" until the end of the series, Jim Cummings voiced him. According to series creator Tad Stones, it was agreed among the whole staff that Cummings was much funnier during table reads, so he took over the role (humorously enough, Cummings' Monterey voice is the exact same one he'd use for Monterey's father Cheddarhead Charlie in "Parental Discretion Retired". Turns out he did teach Monterey everything he knew!).
After the proposal for a spin-off of The Rescuers was rejected, series creator Tad Stone retooled his pitch into a completely original concept called◊ Metro Mice◊. Chip's role (and wardrobe) was originally filled by an Indiana Jones-type mouse named Kit Colby and Monty was a kangaroo rat named Colt Chedderson. Other Ranger characters included a far-sighted eagle named Eagle Eye, a chameleon named Camilla and a Martial Arts-savvy, baseball-crazy cricket named Chirp Sing. Gadget and Zipper were also present in more or less the form they'd be in the series proper. Michael Eisner and Jeffrey Katzenberg liked the concept, but wanted to continue the formula of making new shows out of established Disney characters, so Kit was replaced with Chip from Chip 'n Dale, with Dale getting added to the main cast as his sidekick and half of the new characters getting dropped.
The character known as Sewer Al, an alligator with a love for books, was meant to be a recurring informant and sometimes adversary to the Rescue Rangers in the show, but he never made it past the series bible. According to Word of God, he came off as too formidable an adversary for the Rangers to have to regularly contend with due to his great strength and great intelligence. Despite this, the character showed up in at least two different storybooks based on the show, one coloring book, and in the Disney Adventures comic series, switching between being an enemy and ally in the latter. Sewernose from "A Case Of Stage Blight" is possibly an Expy for Sewer Al, but with his love of literature replaced by a love for theater.
Write What You Know: As the show's staff was based out of the greater Los Angeles area, a few Hollywood and Burbank landmarks are either mentioned (Lankershim Blvd/Cahuenga Blvd) or appear (Bob Hope Airport) from time to time.
"Slipping Through the Cracks" has quite a few similarities to the popular fanfic set in The Nowakverse. Namely, the primary antagonist is a paler, Unknown Rival of Gadget, complete with Stalker Shrine, who wants to destroy the Rescue Rangers due to her jealousy over Gadget getting the love and support she never did.
When the Rangers need medical attention, they are tended to by Tammy, who was inspired by the Rangers to become a nurse so she could help others. This idea first appeared in Of Mice and Mayhem, one of the most beloved pieces of fan content produced in the Rangers' fandom.
Foxglove is the Sixth Ranger to the comics, which appeared in many fanworks before the comics released.
What Could Have Been: The short-lived series under Disney's own imprint was supposed to have lasted longer than just 19 issues. The final issue of the comic even featured solicitations for an unpublished twentieth issue that would have featured the return of the Techrats from earlier in the comic.