- "Every decision you've ever made ends with death and misery. People die. I stop you. You'll just break out and do it again."
- ―Batman to the Joker[src]
|Based in||Gotham City|
Arkham Origins Blackgate
|Voice actor||Mark Hamill|
Troy Baker (Arkham Origins)
The Joker was an insanely homicidal criminal renowned for being Batman's greatest foe. While he possessed no superhuman abilities, his aptitude and love for creating mayhem made him incredibly dangerous.
A man with no known name or past, the Joker's white skin, green hair, ruby-red lips, and purple suit belied the chaotic nature underlying his colorful appearance. With no super-powers beyond his capacity for incredible violence and destruction, the Joker prided himself on being the one villain in Batman's extensive rogues gallery who shared a unique connection to the hero, seeing the Dark Knight as not only his greatest enemy, but friend as well. As intelligent as he was violent, the Joker formulated countless plans to destroy Gotham City, leading to the brutal deaths of innumerable people over the years.
One of Batman's oldest foes and his greatest nemesis, the Joker haunted Batman's life for years, often being responsible for some of the most tragic events of his life, including the crippling of Barbara Gordon and turning Jason Todd into a hate-fueled weapon. Seeking to break Batman's moral code and create as much destruction and chaos as possible, Joker's unpredictable nature made his plans to destroy Gotham complex and difficult to thwart.
- Perhaps unintentionally, but all three of the Rocksteady Arkham games end with a situation in which Batman's acts of self-preservation doom the Joker.
- In Arkham Asylum, Batman chooses to use the Titan antidote on himself instead of the Joker, as he was unwilling to transform into a monster.
- In Arkham City, Batman cures himself of the Titan sickness and expresses reluctance in curing Joker. This reluctance indirectly causes the vial to smash and Joker to die.
- In Arkham Knight, Batman preys on Joker's fears to force him out of his mind, preventing him from wreaking havoc on Gotham once more, and ending him forever.