Joker

*How many Jokers does it take to screw in a lightbulb? Wouldn't know;they're too busy loosening Batman's screws!*
―Joker displaying his sick sense of humor.[src]

## Joker

### Aliases

The JokerClown Prince of CrimeMr. J
Puddin' (by Harley)
Clown Boy (by Cash Tankenson)
Sad Clown (as a vampire)

## Appearances

### Portrayed by

Kevin Michael Richardson (English)Kozo Shioya (Japanese)
Ruben Leon (Spanish)
Pierre Hatet (French)
Riccardo Peroni (Italian)
Michael Iwannek (German)
Julio Chaves (Portuguese)
Aarre Karén (Finnish)
Per Sandborgh (Swedish)
Gilad Kietter (Hebrew)

### Final appearance

*Lost Heroes, Part One*

Joker is the main antagonist of *The Batman*. He is an evil and comedic genius who is the archenemy of Batman.

## Physical Appearance

Joker is a Caucasian man with white skin and green wild hair styled like a Jester's cap. He has red eyes with yellow pupils and a blue tongue with yellow teeth and red lips. His first suit consists of a straitjacket with purple sleeves and blue pants with a belt and barefoot and fingerless gloves;the sleeves on it were flying freely from his arms,until Batman cut them to normal length in their first fight. His second suit is a purple jacket (with lavender flower pin), orange shirt, and dark purple leggings (with finger-less gloves of the same material), but still had wild hair and wore no shoes, except one episode (which had mechanical stilts concealed in them) in which ironically he reverted to his earlier costume. Aside from the tie-dyed straitjacket being swapped out for his trademark purple and orange suit, *Topsy Turvy* adds bushy black eyebrows and black rings around Joker's eyes, his lips are a darker shade of red, his teeth are more detailed and his hair animations are noticeably less fluid;his teeth also now overbite instead of proportionally closing on each other,as with Bane. Joker also moved and fought with a monkey-like style, by using his feet as dexterously as his hands, and often hung from the walls and ceilings,although,his fighting skills were dialed back as time went on. He was born by falling into a vat of chemicals, which bleached his skin, dyed his hair and drove him to insanity. When he's using Venom, he has a mohawk and a big bulky stature; he wears a purple strongman suit with pink circles on it. Before his transformation,he had brown hair and wore a typical office uniform.

Some of the toys color his straightjacket as black with green and pink sleeves, white and grey with blue pants, or even longer sleeves with a black and white design on them.

Joker before his transformation.Joker's original appearance.Joker under the effects of Bane's venom.
## Personality

*You're not expecting Joker to actually make sense,are you?*
―Alfred about Joker.[src]
Joker often switched from a prankster-like clown to a much darker homicidal barefoot wild man (as in later episodes). Despite this, he was always kind to his sidekick Harley Quinn and never physically abused her.

While it could be argued that this version of the Clown Prince of Crime more resembled the colorful, comic relief character featured in the comics of the 1950s and '60s and the 1960s show, he was still a highly dangerous, intelligent, and cruel character - as most of his crimes were silly and prank-like in nature, they could still be legitimately destructive. Joker treated each of his crimes like an elaborate joke designed to make his victims literally die of laughter. Due to his unpredictable nature, bizarre appearance and unnerving instinct for the absurd, Joker earned a reputation as one of the most dangerous criminals in Gotham. Despite his rivalry with Batman, he was shown respect for his abilities and even saved him from Wrath and Scorn so they could keep fighting. He also seemed to care about Harley Quinn, as he admired her show and even once saved her from Batgirl in issue 35 of *The Batman Strikes!*

Sometimes he would simply intend to cause relatively harmless mischief, such as messing up statues with his Joker putty, pranking people with Donnie or throwing foam coins into a water fountain with Harley. Other times, he will get more dangerous to the point where in *Joker Express*, he fills dynamite in Gotham and attempts to blow them up to make Gotham fall into a sinkhole,and when he stole Bane's Venom to wreak Gotham.

Despite him simply wanting to make people laugh,he is not unusual to killing people,as he once attempted to kill Batgirl by splitting her into pieces and once was going to gas Gotham to death. He is also fine with hurting children,as he attempted to gas two elementary school girl (when he was impersonating Batman) for drawing with chalk on the ground,which he considered vandilism,and he tried to throw Donnie into a vat of chemicals to turn him into a mini-Joker.

## History

He was once a nice office man who was neglected by his parents as a kid,until he fell into a vat of chemicals which bleached his skin white, turned his hair green, and turned him into Joker.

In *The Bat in the Belfry*, he checked himself into Arkham Asylum and infected a guard with Joker Venom. After a quick fight with Batman, he retreated to his lair,and Batman used an antidote to cure the guard and went to the Joker's hideout where he flew away on a balloon filled with laughing toxin that he was planning to pop and make everyone laugh, but Batman stopped him and popped the balloon underwater so the toxin wouldn't infect the city. Joker was then sent back to Arkham Asylum.

In *Topsy Turvy*, Joker threatened an Arkham Asylum orderly named Nolan to masquerade as him or else he'd kill him. He made him kidnap a judge in a giant card. Eventually,Batman found out about this and interrogated Nolan, but he ended up blasting himself with the gun and trapping himself in a card. Batman found out that Joker was planning to get revenge on the people that wronged him by trapping them inside cards and drowning them in the ocean, but Batman interfered and defeated the Joker using his own card gun.

In *The Rubberface of Comedy*, Joker used a new substance called Joker putty to rob a bank and escaped with his new henchmen Punch and Judy. He also sprayed the putty on a statue and molded it to his likeness. When Batman arrived, Joker and his men once again escaped. Joker then robbed a museum and stole a golden smiling face, but GCPD detective Ethan Bennett cuffed Joker, but Punch knocked him out and brought him to his boss's lair at an abandoned amusement park. Joker tortured Ethan Bennett, attempting to drive him insane and prove that he's a greater menace than Batman. When Batman and Ethan's partner Yin interrupted the Joker however, he drops the putty gun and Ethan inhales the toxic fumes which causes him to become the supervillain Clayface.

Some point later,Joker tried to steal a sonic weapon strong enough to destroy buildings designed by Paul Karon. Batman interferred and stopped the clown,but during the fight,the device shot down support beams and debris,which fell on Paul,paralysing him.

In *JTV*, he hijacked the airwaves and broadcasted his crimes to the public as entertainment. He infects both Mayor Grange and Yin's new partner Cash Tankenson with laughing toxin and attempted to release the toxin on all of Gotham City and drop Grange and Tankenson off of a tower,but Batman stopped him and deactivated the toxin dispenser. He also left Joker's men, Punch and Judy tied up and hanging on top of the tower.

In *Meltdown*, Clayface seeked out revenge on Joker for what he did to him, but Batman stopped him and froze him. Joker escaped and later on attacked Wayne Industries, Ethan's new workplace after he had been released from Arkham. Ethan used his Clayface powers again to stop Joker,but Joker escaped once again, and eventually Batman, Clayface and Joker fought each other. Clayface threw clay at Joker's special boots which trapped him, and he was sent back to Arkham Asylum along with Clayface, who has gone past the point of no return.

In *Strange Minds*, Joker captured Yin and was going to blow her up in a certain amount of time if Batman did not stop him. Batman enterred the Joker's mind and fought off the many Jokers that are inside, but they overpower him and dogpile on him. Batman eventually gained the strength to knock them down,but Joker teleported him deep inside his mind and told him there's no way out, but Batman found a hole in the ground and jumps in the hole to escape along with Joker. Joker seemingly woke up and was bemused upon seeing Yin. He inadvertedly revealed where he was holding her,and Batman revealed they are currently in his mind. Batman saved Yin just in time,and Joker was left crying in his cell at Arkham Asylum.

In *The Laughing Bat*, Joker was sick of being Joker and masqueraded as his archenemy Batman, infecting people who commit minor crimes with laughing toxin. Joker also threatened Mayor Grange to pay a bill for his services, and he infected his wife with laughing toxin as an example of what happen if he is not paid and leaft her hanging on his office because the crime she commited was having "eleven items at a ten-item grocery checkout". Joker then tried to gas two little girls drawing chalk on the road,because he saw it as graffiti. Eventually,the two Batmen fight,and Joker overpowered and infected Batman with laughing toxin that would kill him in 24 hours. Batman started having laughing fits,and eventually Penguin got involved when he stole an egg. Joker interrupted him and Batman arrived. The three fought but eventually Batman concocted an antidote and drank it to cure himself from the venom. Batman defeated Joker and pulled. off his mask. Batman told him a joke and Joker began laughing and went back to being Joker.

In *Night and the City*,as Joker attempted to control Gotham, both Penguin and Riddler got in the way with their attempts to take control of Gotham City. Joker then agreed with the other criminal masterminds that whoever defeats Batman will get to take over Gotham. As Joker and Penguin chased after Batman and Yin they are confronted by Riddler's goons and they eliminated his henchmen then turned their attention to Riddler. Batman soon arrived to defeat each one of them. Batman defeated Joker by throwing an explosive Batarang at the pipes he was underneath, destroying them and causeing the pipes to fall on Joker, knocking him out. All three of them are later arrested.

In *A Fistful of Felt*, Joker, along with other villains had a therapy session in Arkham Asylum with Hugo Strange. Joker said he could not hear the voices inside his head.

In *The Batman vs. Dracula*, Joker first escaped from Arkham Asylum in search of treasure. Joker tricked Penguin into thinking they will work together to find the treasure;he shocked Penguin with his joy-buzzer and ran off. After a fight with Batman, Joker fell into a river and seemingly got electrocuted to death, much to Batman's shock and sadness. Joker survived and encountered Penguin outside a mausoleum after being found in a fisher man's net. He chased Penguin down, only to be dragged into Draclua's sarcophagus and was turned into a Vampire. Joker's hair turned white, his eyes turned blue-white, and even his clothes were affected as well. Unlike all the other vampires, however, Joker retained his individuality and his speech as well as gaining vampiric superhuman strength and speed. Nevertheless, Joker was still incapable of betraying Dracula's resting place. At one point, Joker humorously commented that the blood that he feasted on in a blood bank had a delicious flavor of "*a bold finish of wild cherries with a hint of oak*" before belching. Joker and Batman had a battle which resulted in Joker's defeat. Joker was taken back to the Batcave and Alfred expressed pity on him stating, "Joker has suffered a fate crueler than death." Joker suffered as a vampire due to a lack of blood,but Batman gave him some of his blood to help him. Despite this Joker remained a vampire and stayed that way until Batman had managed to find a cure and reverted him back to normal. As a side effect, Joker didn't remember anything after his meeting with Penguin outside of Dracula's mausoleum and was sent back to Arkham Asylum.

Joker's "death".Vampire Joker.
In *Brawn*, Joker stole Bane's venom and went on a rampage. In his giant form, he smashed police cars and toyed with the city. Batman attempted to stop him,but Joker was too much of a match for Batman,and Batgirl attempted to help him inside the Batbot, but to no avail, as Joker then took Batman to a carnival where he would finally defeat Batman, but Batgirl interfered inside the Batbot and created a distraction so Batman could escape. Eventually,Joker smashes through the Batbot, but Batgirl jumped out and disconnected the Venom, causing him to revert back to his normal size, and Batman knocked him down.

In The Laughing Cats, Joker is hired by Kilgore Steed to steal leopards for him in exchange for two hyenas named Bud and Lou. Joker attacked Catwoman and captured her, but Batman and Batgirl saved her,and Joker wentto Kilgore's island to collect his hyenas and give him the leopards. Joker betrayed Kilgore by infecting him with laughing toxin,and he then trapped Batman, Batgirl and Catwoman inside a maze, where he and his men, Punch and Judy hunted them and attacked them. Batman defeated the henchman and knocked the Joker down with a punch.

In *The Apprentice*, Joker gained a new sidekick, a prankster named Donny, who went to the same school as Barbara Gordon, but instead of his classmates laughing at his jokes, they laughed at him instead, which lead him to going to a comedy club and meeting the Joker. Joker offered for Donny to be his "apprentice". Donny coudl not decide, but Joker told him to chew on it for awhile and that he will see him around. Back at Donny's school, Joker played a prank on the kid's teacher by attaching him to a flagpole. Joker and Donny laughed, and Joker offered for him to be his sidekick. Donny agreed,and he invited Donny to his idea factory, where they came up with a plan to shoot giant gumballs at the GCPD. Donny went by the name Prank.Batman and Batgirl headed to stop them. Batman fought Punch and Judy while trapped in gum, meanwhile, Batgirl recognized Prank from his laughs,and Joker knocked her out with a boxing glove gun. Batman defeated Punch and Judy but Joker chained Batgirl to a gumball and told Prank to launch it, but he refused because he did not want to hurt people;he only wanted to make them laugh. Joker then got angry at this and brought Prank to Ace Chemicals where he attempted to drop Donny into the same vat of chemicals that created him, but he is stopped by Batman and Batgirl,and Prank delivers the final blow to the Clown Prince of Crime using his own boxing glove.

In *Clayfaces*, he attempted to infect dog food with laughing toxin to make every dog in Gotham City laugh, but Clayface masqueraded as Punch and Judy and attacked Joker then trapped him in clay. When the second Clayface Basil Karlo is sent to Arkham Asylum, Joker told him that he still has his Clayface powers which turned out to be true.

In *Two of a Kind*, Joker gained a new partner, Harley Quinn, who was originally a dating TV show host named Harleen Quinzel until her show was cancelled for not helping anyone with their dating issues. Joker took advantage of her sadness and turned her into a life of crime. Harley teamed up with Joker to get revenge on the people who cancelled her show, but Joker eventually leaves Harley behind in a fire, but he also wrote a letter to Harley apologizing to her. Harley then laughed along with Joker while she was being taken away in a police car.

In *Rumors*, Paul Karon's bodyguard became Rumor and tried to get revenge on the Joker for paralyzing his boss. He captured all of Gotham's villains and attempted to execute them,but the villains were accidentally released and went after Rumor, but Batman and Robin took them down.

In *The Joining, Part 2*, Joker, along with other villains attacked the Joining. Joker could be seen using an acid gun against them.

In *Joker Express*, Joker became the conductor of a train and used its lights to manipulate others, making them having tortured and uncontrollable laughter and commit crimes by stealing things and placing it on Joker's ship. Joker planned to escape the city once and for all with many valuables before finally blowing it up with many dynamite he planted underneath Gotham,causing it to fall into a sink-hole below. The three heroes managed to steal the battery of the detonator to prevent the explosion and defeated him again.

In *The Metal Face of Comedy*, Joker's henchman Marty Slacker gave him a helmet that allowed him to digitally download money, but it short-circuted after a fight with Batman and Robin and a digital joker named Joker 2.0 was created. Slacker helped Joker 2.0 escape into the real world using nanobots and tried to take over Joker's place while he was in the hospital, but the real Joker escaped the hospital and went back to his lair where he proposed an alliance with Joker 2.0, but they end up betraying each other and Joker 2.0 escaped without the original Joker, but Batman appeared and zapped Joker 2.0,who then attempted to attack the real Joker who escaped with his gang. Joker 2.0 followed the Joker and attacked him. Batman then appeared and made him put the Joker down, but Joker 2.0 then used nanobots to become giant and put Joker, Batman and Robin on a catapult and launched them, but Batman saved them with the Batbot. Joker's gang regrouped with him but Joker 2.0 fired a rocket at them which Batman deflectd back at Joker 2.0,and Joker and his gang are then tied up. Batman used a satellite dish to destroy Joker 2.0's giant form and teleported him into a game where he is defeated by Nightwing. Joker and his gang are then taken into custody on a police van.

In *The End of the Batman*, two new criminals named Wrath and Scorn helped Joker along with a few criminals get away with their crimes. They then threatened to reveal Batman and Robin's identities to Joker and the villains, but Joker used laughing toxin on them when they were being hauled away in a police van to keep them from talking.

Some point afterwards,Joker was captured and returned to Arkham Asylum. When Batman, Robin,and Green Arrow went there to confront Hugo Strange about working with the Joining,they quickly passed by Joker's cell where he simply looked back and smiled,knowing he will likely escape once again.

## Whereabouts

* From *The Bat in the Belfry* to *The Laughing Cats*,Joker's hideout was near Monarch Theatre. He abandoned it after it was stormed by Batman,Batgirl,and Catwoman.
* In *The Rubberface of Comedy*,he took temporary residence in an abandoned amusement park to torture Ethan Bennett. He used a similar location in *Brawn* after he kidnapped Batman.
* In *The Apprentice*,his second hideout was near Ace Chemicals and it also served as an idea factory.
* As of *Two of a Kind*,his third hiedout is in an undisclosed location which seems to have been a loading bay.

## Powers and Abilities

### Powers

* **Joker Venom Immunity**
* **Cheating Death:** Joker survived falling in electrified water and considered it simply "electro-shock therapy".
* **Vampirism** ***(Formerly)***
	+ **Fangs**
	+ **Claws**
	+ **Enhanced Senses**
		- **Enhanced Vision**
		- **Enhanced Hearing**
		- **Enhanced Sense of Smell**
	+ **Superhuman Strength:** He is able to go toe-to-toe with the Batman.
	+ **Superhuman Stamina:** He is very agile and is capable of jumping high.
	+ **Adhesion:** Joker can climb and stick to various surfaces such as walls or ropes.

### Abilities

* **Gadgetry**: The Joker commits crimes with countless "comedic" weapons (such as razor-sharp playing cards, acid-spewing flowers, cyanide pies, and lethally electric joy buzzers) and Joker venom.
* **Genius Level Intellect**: The Joker is also very skilled in the fields of chemistry, genetics, and nuclear engineering. He also seems capable of mastering whatever he puts his twisted mind to when he wants to. He is also a master schemer.
	+ **Chemistry**
* **Hand-to-Hand Combat (Advanced)**
	+ **Martial Arts**: The Joker also moves and fights with a Monkey Kung Fu-like style using his feet as dexterously as his hands, and often hangs from the walls and ceilings (as the series progressed, these abilities appeared less).
* **Peak Human Condition**
	+ **Peak Human Speed**
	+ **Peak Human Agility**
	+ **Peak Human Reflexes**
* **Escapology**
* **Acrobatics**
	+ **Contortionism**
* **Weaponry**
* **Stealth**

### Other Characteristics

* **Insanity**
* **Vulnerability to Garlic** ***(Formerly)***
* **Vulnerability to Sunlight** ***(Formerly)***

### Weaknesses

* Despite his superhuman feats,he is still vulnerable to various regular weaknesses such as electricity and being hit hard enough.

## Relationships

### Allies

#### Punch and Judy

Punch and Judy are Joker's royal goons,and despite him ditching them a few times,they still obey him.

#### Bud and Lou

Joker's hyenas. They seem to respect their master,but are not far from mocking him,as they once decided to play with Catwoman instead of eating her.

#### Prank

Joker initially saw himself in Donnie,as they were both unappreciated comedians hated by the world. Donnie enrolled with Joker going by Prank,believing they would cause harmless mischief. When Joker ordered him to kill Batgirl however,Donnie wanted to quit,as he did not want to harm anyone. Joker attempted to rectify this by dropping him in a chemical vat to turn him into a mini-Joker. He was then stopped by Batman and Batgirl,while Donnie delivered the finishing blow.

#### Marty Slacker

Slacker served as Joker's personal hacker. And while Joker lost faith in him eventually and was convinced he should let the hyenas eat him,Harley convinced him otherwise.

#### Kilgore Steed

Joker and Kilgore had a normal trader relation. Joker would deliver him leopards in exchange for hyenas. However,Joker eventually betrayed him and gassed him.

#### Ralph

Ralph was Joker's pet bird. It is unknown if he had a good relation with his owner.

#### Nolan

Joker forced Nolan,another orderly at Arkham,to do his dirty work for him so he would not kill him.

#### Penguin

He maintained a rivalry with Penguin for the title of Gotham's greatest criminal,though they were willing to work togther if needed.

### Love Interests

#### Harley Quinn

The Joker's abusive tendencies towards Harley are toned down considerably from the DCAU, and he never physically hits her onscreen; he did leave her to die in a burning building at the end of her debut appearance, but that was more indifference than active malevolence,and it's possible he knew Batman would save her life. Additionally, whereas most versions of the Joker (especially the DCAU incarnation) care very little about Harley and only ever string her along, this Joker shows her more genuine, though obviously still twisted, affection: in her debut episode, he steals her a diamond the size of a softball as a Valentine's Day present, something the DCAU Joker would probably consider a waste of time. It's implied that he was genuinely attracted to Harley because of the crassness and mayhem of her talk show, and his realization that she was capable of even worse things with the proper guidance. He claimed that "the girl is even more screwloose than [him]".

### Enemies

#### The Batman

Joker said that Batman's and his relationship was "like comedy and tragedy - two sides, same coin". Hugo Strange described Batman as the "other side" of Joker's "coin". At first,Batman found Joker merely an annoyance,but as time progressed he viewed him as an unpredictable threat not to be reckoned with. Joker is by far Batman's archnemesis;he managed to get on Batman's nerves a couple of times,such as when he kidnapped Yin and refused to reveal her location,when he turned Ethan into Clayface,or when he (possibly) crippled Barbara. Joker likes toying with Batman and have fun with him,as he kept messing with him instead of revealing Yin's location,once dressed up as and imitated him,and sparred with him in a boxing ring. Joker also does not like anyone else challenging Batman,as he gassed Wrath and Scorn when they figured out Batman's identity to eliminate the competition. With that being said,Joker was sometimes willing to kill him,although it is likely he knew he would survive as he always does. He also does not like someone being Gotham's number one villain other than himself. Overall,Joker serves as Batman's dark side. Joker also remarks that "the Batman needs a Joker. Someone who gives him purpose", afterwards referring to Batman as his "old friend". He stated that Batman "completes" him.

#### Clayface I

Ethan greatly despised Joker,as he is the villain who ruined his life by turning him into Clayface. He attemped once to sneak into Arkham to kill him,but Batman stopped him. Over time,Ethan rectified his ways and decided to only use his powers to simply stop him. Joker initially was not even aware Ethan Bennett was Clayface,but eventually,he became visibly terrified of him,sometimes even screaming for help.

#### Clayface II

Joker seemed rather friendly with the second Clayface,although Karlo considered him a jerk.

#### Angel Rojas

Joker did not have a personal grudge against Rojas,but he hated how he viewed the Batman as a bigger threat than him.

#### Riddler

Riddler and Joker did not get along due to them being complete opposites. When Riddler tried killing Joker and Penguin to claim the title as Gotham's biggest villain,Joker called him a "lousy host".

#### Catwoman

Joker is shown to be the only person who can actually unnerve Catwoman, as him lowering her into a giant pair of chomping teeth is the only time in the series when she shows genuine fear. She also was still uncomfortable around him in the comic tie-in.

#### Rumor

Rumor detested Joker due to him paralsying his boss. This caused him to start a crusade to execute all villains,especially Joker.

#### Hugo Strange

Strange was interested in Joker due to his randomness and bizarre history.

#### Marion Grange

Several murder attempts were made on the Mayor's life by The Joker, who also targeted his wife during the villain's brief tenure as a mock 'crime-fighter'.

#### Ellen Yin

Yin hated Joker deeply. He was the most derranged criminal she arrested to date. Her hatred grew stronger after he turned her old partner Ethan into Clayface.

#### Bagley

Joker hated Bagley because he constantly had to remind him not to serve him macaroni and cheese,as he hates it.

#### Horace Wigzell

Joker disliked him because he sentenced him to a lifetime in Arkham.

## Victims

### Joker Gas (and its variants)

* Chad
* Batman
* Cash Tankenson
* Marion Grange
* Kimberly Smith
* Sheila Grange
* Penguin
* Kilgore Steed
* Squirrels
* Batgirl
* Robin
* Sally Galt
* Wrath
* Scorn
* A number of Gothamites

### Abduction

* Nolan
* Horace Wigzell
* Bagley
* Marion Grange
* Ethan Bennett
* Ellen Yin
* Cash Tankenson
* Batman
* Batgirl
* Robin
* Catwoman
* Prank

### Other

#### Hypnosis

* Batman
* Batgirl
* Robin
* Becky
* Harriet Potter
* Citizens

#### Paralysation

* Paul Karon
* Batgirl (possibly)

## Appearances

### Season 1

* *The Bat in the Belfry*
* *The Man Who Would Be Bat* (cameo in newspaper)
* *Topsy Turvy*
* *Bird of Prey* (mentioned)
* *The Rubberface of Comedy*
* *The Clayface of Tragedy* (impersonated by Clayface;flashback)

### Season 2

* *JTV*
* *Meltdown*
* *Strange Minds*
* *Grundy's Night* (Halloween costume only)
* *The Laughing Bat*
* *Night and the City*

### Season 3

* *A Fistful of Felt*
* *Brawn*
* *The Laughing Cats*
* *The Apprentice*
* *Gotham's Ultimate Criminal Mastermind* (photo)

### Season 4

* *Team Penguin* (cameo in photo)
* *Clayfaces*
* *Strange New World* (mentioned)
* *The Breakout* (mentioned)
* *Two of a Kind*
* *Rumors*
* *The Joining, Part 2*

### Season 5

* *White Heat* (mentioned)
* *Joker Express*
* *Ring Toss* (mentioned)
* *The Metal Face of Comedy*
* *The End of the Batman*
* *Lost Heroes, Part One* (cameo)

### *The Batman Strikes!*

* Issue 2 " City Of Bats" (cameo)
* issue 3 "Outlaw and Disorder"
* Issue 9 " Sanity Plea"
* Issue 16 "Hit and Run"
* Issue 26 " Escape" (cameo)
* Issue 28 "The Comic and the Straight Man"
* Issue 32 " How to Take Out A Room Full Of Goons"
* issue 34 " Shtick Shift" (cameo on Batman's trap)
* Issue 35 " The Clown Prince Of Late Night"
* Issue 39 " Hostile Takeover"
* Issue 40 "The Burning Question"
* Issue 41 " Girls Just Wanna Have Fun!" (mentioned)
* Issue 43 " Grounded (cameo)
* Issue 47 " :20 Minutes"
* Issue 48 (mentioned)

### Toys

* Hammer Strike Joker
* Crazy Cut-Up Joker
* Card Attack Joker
* Card Attack Joker (Shadow Tek)
* Strangle Sleeves Joker

## Trivia

* Joker is a bit different in this show then he usually is, as he has a fairly different design and style than usual, but he still represents the classic version of the Joker more than anything else.
* Joker taking Bane's Venom to become a Bane-like powerhouse would happen in the game *Batman: Arkham Asylum* again, but instead of Venom, it was Titan.
* Joker had quite a few figures based on him, most of them are just recolors of "Hammer Strike Joker" though.
* Most of the toys created for him are just recolors of his straitjacket, although the toy "Strange Sleeves Joker" had cloth sleeves though the other recolors of the straightjacket were plastic.
* Joker hates macaroni and cheese,as shown in *Topsy Turvy*.
* In *The Laughing Bat*,Batman told Joker a joke with the latter laughing at it. This happened again in the conclusion of *Batman: Arkham City*.
* Joker swiped Batman's belt twice in *The Laughing Cats* and *Joker Express*.
* Joker is one of the characters with their own leitmotif,alongside Batman,Robin,Batgirl,the GCPD (Yin,Ethan,Gordon),Cash Tankenson,Superman,Green Arrow,Hawkman,Catwoman,Kabuki Twins,Killer Croc,Spellbinder,Gearhead,Harley Quinn,the Joining,Captain Slash,and Wrath and Scorn.
* Joker is one of the few characters to appear in all five seasons besides Gordon,Penguin,Mr. Freeze,Batman,Alfred,and Mayor Grange.
* Joker is one of the few characters to get redesigned,along with Hawkman,Man-Bat,and The Batman.
* His leitmotif is an eerie tune played on a distorted circusy-sounding organ. In some parts, it even sounds a bit like Johann Sebastian Bach's Toccata and Fugue in D Minor
* His typical speaking style switches from quiet and high-pitched, to loud and booming
* In this series, unlike almost all other media, the character was almost universally referred to simply as "Joker" rather than "*the* Joker"; this was to contrast with the way his enemy's name was similarly altered, universally being referred to as "the Batman" instead of just "Batman". The same is done with Penguin,Riddler,and Ventriloquist,as they are all spelled without a "the".
* He has long anime-styled hair in this series instead of the short, clean cut hair of most other Jokers. This hairstyle likely inspired the long hair worn by Heath Ledger's Joker in *The Dark Knight*.
* Joker's line of expressing how men were easily driven insane and how he became what he was after only 'one rotten day' was based off the famous "one bad day" monologue from *Batman: The Killing Joke*.
* It was possible that this incarnation of the Joker had an origin similar to the *Killing Joke*, as he mentioned that he had always wanted to make people laugh. In a flashback to his origins, Joker was shown wearing red clothes before he fell into the chemicals which suggested at the very least a Red Hood origin. It was also hinted that Joker would one day cripple Batgirl like in "the Killing Joke" as Barbara Gordon was shown to be confined to a wheelchair in the future.
* Joker's long, dreadlocked hairstyle was inspired by the Jester's Hat, which is often associated with The Joker or The Fool. This led fans to believe Joker was African-American, and confused them when Joker was shown to be Caucasian in a flashback.
* Joker never used the monkey-like combat style in the comic strips, TV Series, and Live-Action movies until *The Batman*.
* Joker underwent relatively drastic visual changes throughout the series, bringing him closer to more conventional Joker designs. His straightjacket was switched out for the iconic purple tuxedo, his hair became shorter and less fluid, his teeth, while still jagged, were no longer "jigsaw" teeth that slotted together and he adopted a straighter posture. This accompanied the downplaying of his combat skills and ultimately resulted him being quite similar to his TAS counterpart by the end of the series.
* Interestingly enough, when Joker was changed into a vampire by Dracula, he was the only one who appeared to have kept his identity, and even went so far as to rob a blood bank unlike his fellow victims, who seemed to have changed into mindless animals. The explanation for that could be due to his extreme insanity being able to protect him from Dracula's control (though it still prevented him from being able to tell the Batman where Dracula's location was). He also doesn't suffer as many side effects from venom as Bane does, lacking the red skin-tone and yellow eyes that Bane gets. (The chemical bleaching may have something to do with this.)
* Despite Dracula himself turning Joker into a vampire, the Count appeared to have little concern for him when he didn't return to the crypt. It's possible that he was considered too dangerous and unpredictable by Dracula and was thus ousted from the pack (or he left of his own free will).
* This version of Joker is much nicer to Harley than his DCAU counterpart,buying her a diamond the size of a softball for her Valentine's Day and choosing to indulge on her simply because he could as opposed to manipulating her to get out of Arkham. He also never physically hits or abuses her but he does leave her behind in a fire albeit out of indifference rather than active malice and it's possible he knew Batman would save her life.
* This version of Joker shares a resemblance with his version interpreted by the late Heath Ledger in *The Dark Knight*: both having kidnapped a law official (Ethan Bennett in *The Batman*, Harvey Dent in *The Dark Knight*) and corrupted them into two criminals.
* When the character of Gotham's Mayor Grange warned Joker he would not get away with his latest scheme in one episode, he had some experience saying that, as he was played by TV's original Batman, Adam West, who in his time had faced down another Joker.
* As with the 1966 TV series,Joker along with Penguin are the most used villains in the show.
* This version of the Joker, next to Jack Nicholson's portrayal, is the only one who refers to himself as "Joker" instead of "The Joker".
* Despite never being acknowledged onscreen, it's possible that The Joker committed the same crimes his original counterpart did during the popular 1988 one-shot *Batman: The Killing Joke* at some point before 2027. This is because Barbara Gordon is depicted as wheelbound in the episode *Artifacts*. As Joker's origin resembles that of his *The Killing Joke* counterpart, this could be the case.
* This Joker has a more sympathetic past than most, being a nice guy neglected by his parents who wanted to make people laugh before his chemical bath (though it's unknown if he was robbing the chemical plant or not). His original self serves as the good side of his brain as it attempts to help Batman find Yin, but he is soon dunked in chemicals for telling Batman and is turned into Joker himself.
* This is the one of the few incarnations of the Joker to not have killed anyone on-screen. It is possible he has killed people offscreen, however. He has also attempted to kill some people a few times.
* Concept art depicted him with a head resembling more the traditional Joker.
* Joker wore his straitjacket in *The Bat in the Belfry,*the photo in *The Man Who Would Be Bat*,the first half of *Topsy Turvy*,the flashback and Clayface imitation in *The Clayface of Tragedy*,old footage in *JTV*,*Meltdown,*a Halloween costume in *Grundy's Night*.and the first few issues in *The Batman Strikes!*