- Children Voicing Children: Yep. Austin's voice actor recorded lines for early episodes when he was only seven years old.
- Cowboy BeBop at His Computer: Wikipedia claims that the episode "The Two Musketeers" features a guest appearance from Céline Dion.
- Dawson Casting: Most of the time, the actors were a few years older than characters.
- It got pretty ridiculous in the final season, when only three of the cast members from Season One remained: 13 year old Jonah Bobo, 15 year old Sean Curley, and 16 year old LaShawn Jefferies as 5-7 year olds Austin, Pablo, and Uniqua, respectively.
- Multiple foreign dubs have the characters voiced by full grown adults. In the Czech dub, Austin's voice actor was in his forties.
- Fandom Nod: The production team did the viewership a favor by getting the show's least original example of Genre-Busting out of the way in the form of the hip-hop-western adventure "Riding the Range" early in season 1.
- Non-Singing Voice: Each character has two voice actors; one for speaking and one for singing.
- The Other Darrin: As of season four, the only remaining cast members from season one are Uniqua's speaking voice, Austin's speaking voice, and Pablo's singing voice. The other characters have had at least one replacement. Tyrone is the biggest victim of this, as he gets a new actor/singer every season. note
- Out of Order: No two networks seem able to agree to an episode sequence. In the US, Nick Jr. used "Knights are Brave and Strong" as the premiere. Sometimes, episodes will be pushed back and worked into a theme. For instance, "Match on Mt. Olympus" was held back in America, and aired during the 2008 Olympics. This does not mess up any of the aforementioned Call Backs, though.
- Real-Life Relative: Boinga, the baby alien from "Mission to Mars", is voiced by the niece of Alicia Keys. Boinga's mother was voiced by Keys herself.
- Saved from Development Hell: Its earliest form dates back to the late 1990s, with a live action pilot being filmed all the way back in 1998.
- Similarly Named Works: "Mission to Mars" shares its name with an episode of Ready Jet Go!.
- What Could Have Been:
- One episode was supposed to use Sun Ra's avant-garde jazz as a music genre, but the show's producers thought it would scare parents and decided not to go through with it.
- As of the 1998 pilot, the series was going to be a live-action show called "Me and My Friends." Austin was not present in this pilot, or the 2001 animated pilot. See here for more on the pilot. The character's designs mainly stated stationary, except Uniqua's body was more purple, Tasha had a tiny bow on her head, and Tyrone has blonder hair and a different color sweater.
- The Wiki Rule: The Backyardigans Wiki, which was the recipient of the "Wikis of 2010" award and several Wikia spotlights.
Trivia / The Backyardigans