John Byrne's unpopular erasure of the Doom Patrol's past was undone thanks to a battle with Superboy Prime.
Resurrecting Jericho with his original, pre Heel–Face Turn personality.
Both Rose Wilson and Cassandra Cain's bouts of insanity were explained away by Deathstroke drugging them during Johns final arc on the title, with Cassandra restored during it.
Cutting down on the number of mentor titans after fans complained and making Robin the leader of the team post One Year Later.
Geoff Johns' story plans were complicated by Infinite Crisis, causing several plot threads to be rushed, changed, or dropped completely. Johns would later imply that having to kill off Superboy to spare Nightwing's life had thrown a wrench into the later plots he'd drafted. Impulse becoming Kid Flash was also a mandate by Eddie Berganza (the editor at the time) who saw it as a way to make him more of a "brand" character for the Flash family, while Johns went along with it as he saw it as a chance to mature Bart. Johns eventually bowed out of the title mid-"Titans East" arc, having only written the outlines and leaving Adam Beechen to finish up the rest.
Issue 47 was originally drafted as a story where Duela Dent got to join the volume 3 team after "Titans East", which would set her up to be a more active character. Due to the creation of Countdown and Duela being killed off to start the event, the plot was altered to be a tie-in with the Titans mourning her death.
It's speculated that Sean McKeever left the book because of this, specifically the death of Kid Devil, one of his favorite characters. A planned resurrection arc for the character was also shot down. This was, according to Dan Didio, done so as the establish the new "death is permanent" policy after Blackest Night (which didn't last anyway), but since he specifically pointed out Kid Devil, it's pretty safe to assume Didio simply doesn't like that character. A few years later he would confirm this. He tactfully calls it "creative differences".
During the show's original run, the show would get very frequent airtime, even early in its run, with encores of new episodes airing two to three times a week and weekday strips at various times. Though there was a slight reduction upon the premiere of Naruto, the show continued to be a favorite for the network and would often return to Toonami and Miguzi as filler. It probably had the longest concurrent run on Toonami and Miguzi out of alltheshowsthat aired on both at the same time.
Cartoon Network brought the show back for reruns in August 2017, presenting it in the 16:9 format it was originally produced in and remastered in HD. It was originally at 6am, but for unknown reasons (possibly decent ratings), the show was given a later slot at 3pm and later 5pm (all while keeping its 6am slot). Throughout September and October, the show aired for three hours a weekday, and it got to the point where CN started stripping slots from other shows (including Ben 10 (2016), We Bare Bears, The Amazing World of Gumball, and even Teen Titans Go!) just to show more Teen Titans. At one point in early 2018, Saturdays were basically dedicated to nothing but this show, Teen Titans Go! and later Unikitty! It was dropped later that year, but CN has occasionally brought it back for special events since then.
Originally the producers weren't allowed to use Kid Flash, which is why Más y Menos were created. By the show's last seasons, however, they were allowed to use him.
Because of the Never Say "Die" trope, Deathstroke was forced to be called by his first name, Slade (except in foreign dubs). It may have been a good idea, as it is often considered more enigmatic and badass than his original name. Could even be almost seen as an in joke, most of the first season revolves around "Who is Slade?". That in mind, try not to get a chuckle when you think that he's been running around using his real first name all this time.
It was eventually mandated, come Season 5, to reduce the amount of villains with a red and black color scheme, which at least explains Adonis' changes in color scheme in his cameos. Red X was safe from this, though.
Because it was forbidden for Wonder Woman or any of her supporting cast to appear on shows where she wasn't a main character at the time, Wonder Girl's only appearances were cameos in the episodes "Homecoming, Part 2" and "Calling All Titans", though she does appear in the tie-in comic book Teen Titans Go!.
The series itself caused some, as neither Justice League nor The Batman could use Robin. This resulted in the former putting Wonder Woman in Jason Todd's place when it adapted "For the Man Who Has Everything" and Batgirl appearing before Robin (who made his debut in the fourth season after Teen Titans was cancelled) in the latter.
In-episode example: In "Revolution", Beast Boy ends up talking like he's from Liverpool and sports neat hair.
Argent may also qualify, as she shares her voice actor with Starfire, yet she's found in New Zealand and has a British (or possibly mid-Atlantic) accent.
Fake Nationality: American Glenn Shadix voices French Monsieur Mallah (Shadix also voiced the Brain, who, per the comics, is also French, but his Machine Monotone makes it hard to tell).
A "New Teen Titans" short addresses all the guesses about who Red X is, including Jason Todd, Alfred and Batman.
"For Real" One fan forum began to suspect writers visited their site due to the nearly verbatim lines in regards to Titan's East.
Follow the Leader: Try to find an American kids' action cartoon made in the past two decades that does not take any cues from this series' success. It's not easy. Teen Titans solidified the trend of Animesque action-comedy kids' shows that run on Rule of Cool.
Fountain of Expies: Terra, despite how depressing her story was, especially for a kid's show, arguably started a trend of similar "Tragic, usually blond, female Anti-Heroes who develop a close bond with the cocky, energetic hero, only to end up dead or otherwise lost to them" in the 2000s, with characters like Jinmay, Rose, Princess Yue, Melody, and Dani all having similar arcs to her own.
Irony as She Is Cast: In one episode, Beast Boy offers some tofu dogs to Raven, who responds "I respect that you don't eat meat. Please respect that I don't eat fake meat." Tara Strong is a vegetarian in real life.
Missing Episode: "The Lost Episode". It featured a villain named Punk Rocket who used a weaponized guitar. Punk Rocket would later show up in a very minor role near the end of the 5th season as part of the Brotherhood of Evil. In a very odd example of this trope, the episode is neither technically missing or was ever lost. Rather, it was a normal (if half-length) episode that was withheld from broadcast in favor of being an incentive to buy cereal. You'd buy the cereal, and get a code to enter on that website, where'd you watch it in glorious 2004/5 tiny window with extremely poor quality. It's since been released on the DVD and Blu-ray for Trouble In Tokyo.
No Origin Stories Allowed: Forbidden via Executive Meddling, the show was not allowed to include Batman-related properties other than Robin, so Robin's origin story was pretty much completely untouchable.
Older Than They Think: The Teen Titans were represented in an Animesque style earlier in the comic Titans: Scissors, Paper, Stone.
"Final Exam" was originally aired as the first episode, despite being the third episode produced. "Divide and Conquer" was the third episode to be aired despite it being the first episode produced.
"Car Trouble" originally aired as the last episode of Season 1, despite being produced before "Apprentice - Part 1" and "Apprentice - Part 2", the last episodes produced in Season 1.
When Trigon first debuted as a mental manifestation of Raven's anger, he was voiced by Keith Szarabajka. Later, in Season Four, he was voiced by Kevin Michael Richardson due to schedule conflicts.
Most of Gizmo and Jinx's appearances are voiced by Lauren Tom. However, the former's final two appearances and the latter's very last appearance were voiced by Tara Strong.
The Italian dub of Season 5 was done 11 years after the first four seasons, and multiple characters were recast to match the Teen Titans Go! voice cast: this means that Gabriele Patriarca replaces Leonardo Graziano as Beast Boy, Luigi Ferraro replaces Roberto Draghetti as Cyborg, Barbara Pitotti replaces Monica Vulcano as Jinx, Rachele Paolelli replaces Daniele Raffaeli as Gizmo, Joy Saltarelli replaces Isabella Guida as Terra and Massimo Corvo replaces Pierluigi Astore as Slade.
The Other Marty: Freddie Rodriguez originally recorded lines for Pantha, as the creative team thought it'd be funny for her to have a manly voice that was a mix of "Antonio Banderas and Ricardo Montalban". For an unknown reason, the role was recast with Diane Delano in the post-production ADR period, and she dubbed over Rodriguez's line readings. Even so, the deep voice Delano used for Pantha gave fans much confusion over whether a man or woman voiced her.
Tara Strong, who normally plays cheerful and energetic characters, as the melancholic and sardonic Raven.
Kevin Michael Richardson, who normally plays tough and intimidating characters, as the nerdy See-More.
Hynden Walch, known for playing kind-hearted heroines such as Starfire here, as the villainous Madame Rouge and Blackfire.
Tom Kenny, whose expertise is portraying zany and wacky goofballs, as the creepy and unsettling Fixit. Only further highlighted by him playing perfectly in-type as Mumbo in the same episode.
John Dimaggio usually play tough or villainous guys. Here, he once played Spike, a mechanic bullied by Atlas.
Pop-Culture Urban Legends: That a sixth season was being planned and maybe even written, but cancelled due to low toy sales or because as it was too popular with the wrong demographic. In reality, a sixth season was never in development. Defunct fan site TitansGo.Net interviewed writer Rob Hoegee after the series' conclusion, where he revealed that the fifth season was slated to be the final one when it was ordered by Cartoon Network as a Post-Script Season, with the writing team given no expectations of another surprise season order. While CN were open to the idea of a continuation towards the end of production, what they wanted (and what was ultimately pitched and rejected) was more of Retool/Sequel Series.
Role Reprise: Considering the fact that the identity of this Kid Flash is presumably still Wally West, Michael Rosenbaum was also voicing the Wally West version of The Flash in Justice League during the years that the show was airing.
Trailers Always Lie: Commercials broadcast everyday on the Boomerang network that promoted their daily "Boomerang Theater" broadcasts of Direct to Video and Made-for-TV films from popular cartoon franchises, always included the 2003 Teen Titans as one of those franchises. Titans have never been included on "Boomerang Theater" broadcasts.
Unfinished Dub: The German dub only covered the first two seasons.
. He tactfully calls it "creative differences".