Sadly, due to Warner Bros' ill-thought 'Bat-Embargo', Joker only appeared on Justice League for a couple of episodes. His final appearance involved a reimagining of the Royal Flush Gang, who in the DC Animated Universe were metahumans captured by the US government. As most things do, it ended terribly - at least for Joker.
One of the freed metahumans was a young girl called Ace. Ace was the strongest of the group as she possessed a potent form of telepathy. The Clown Prince decided that he could use her as a weapon to turn the entire populace insane, and he would've succeeded - if not for the efforts of Batman and the Justice League.
Joker was playing a dangerous game manipulating Ace, and Batman was able to exploit it in their final confrontation in the series. The Dark Knight shows Ace that her saviour had actually been in possession of a power dampening headband to use against her, and this leads Ace to turn all her powers against Joker, somehow turning him even more insane than he was already.
DCAU continuity dictates that Joker recovers from this mental attack, but at the time? You'd be forgiven for thinking that was it for the villain...
WhatCulture's very own resident movie guy, Ewan has been working in the content creation biz for over 10 years now, having started as a freelance contributor to WhatCulture Gaming all the way back in 2015. After graduating with a First-Class Honours in History from Northumbria University in 2017 (where he won a prize for a totally killer dissertation on the Watergate years), Ewan took on the role of Comics Editor at WhatCulture and quickly developed WhatCulture Comics into one of the biggest superhero-focused channels on YouTube. He followed this with a brief hiatus at Screen Rant in 2021, where he worked across the Gaming and Film sections as a writer and editor, before returning to WhatCulture as a Senior Content Producer / Presenter in 2023. He started his own podcast, We Love Dad Movies, in 2022, and has contributed several written pieces to the Eisner-nominated comics website Shelfdust as well.
In his current role, Ewan incorporates his love of cinema, comic books, and history into written pieces and video essays for WhatCulture's Film & TV channel, as well as WhatCulture Gaming and WhatCulture Horror, with a particular focus on nineties-era Dad Movies, old school Westerns, and Golden Age Hollywood Noir. John Carpenter is his fave, and he thinks Batman Beyond should never have been cancelled. If that's your vibe, you'll probably like his stuff.
