Joker is the dynamic duo's most frequent and most exuberant enemy. His abilities as a master conjuror allow him to effortlessly escape from prison, making him even more of a threat. Luckily, his crime waves often follow some pattern or theme that sometimes allows Batman and Robin to predict his next move.
Joker is well-known for his skill with electronics, and was a hypnotist when he was younger.
- the Master of Maudlin Mockery
- the Clown Prince of Crime
- the Monstrous Montabank
- the Chaplain of Chicanery
From time to time, a villain will slip into a guise in order to further their criminal deeds. These aliases could be just a name or they could include costumes and make-up. In every case, however, Batman and Robin would eventually see the real evil behind the mask. What follows is a list of aliases used by Joker.
- W.C. Whiteface, owner of Penthouse Publishers
- Clavier Ankh
Weapons and Equipment
- Two-way spy device- allows him to eavesdrop on conversations. It is equipped with a remote control-activated self-destruct.
- Joker's jumping beans- kept in a briefcase. When he opens it, the beans jump out and cause an enormous distraction, aiding his getaway.
- Liquid cement- when thrown on the floor, this will keep anyone who walks on it stuck in place.
- Joker jelly- concentrated strawberry gelatin that can change a large amount of water to jelly. When put in the Gotham City Reservoir, it was powerful enough to affect the entire city's water supply.
- Satellites- allow Joker to follow people by planting a tracking device on them.
- Roving Robot Recorder- lets Joker see and hear through his robots' eyes and ears.
- Jokemobile- a specialized modified roadster.
- Portable Robot Receiver- homes in on a robot's signal.
- Gas grenades- used for quick escapes.
- Tiny cuff link radio circuit- for listening in on conversations.
- Robot Super-strength Last Ounce of Energy Switch- increases the robots' power when needed.
- Magic box- the first version of this device helped Joker hypnotize people, it provided a visual device for to distract them while he was confounding their mind with his mental skills.
- Rebuilt Magic box- the second box had a switch that could be used to turn time backwards or forwards, also controlling its speed.
- Human key duplicator- can skeletonize a person's body into the shape of a large key.
- Wax spray chamber- coats the victim with layer upon layer of wax. Has three speed settings.
- Mobile- a rotating machine with many spinning pallet knives arranged on its rotating arms. The victim is strapped to a platform as the knives descend toward him.
- Two-way Hotdog Transmitter- disguised radios for when secrecy is paramount.
- Paralyzing gas pellets- explode when activated by the hotdog transmitter.
- Surfing Experience & Ability Transferometer- drains all surfing know-how from one person and puts it into another. Contains a Vigor Reverser that does the same with youthful energy.
- Sea Urchin Spines- filled with deadly poison
- Lethal Joker buzzer- hidden in palm of the hand, causes the victim to lose his five senses one by one, just before their lungs collapse.
- Little green time bomb- hidden in the Batmobile, this little number destroyed almost the entire Batcave.
- Flying saucer- was designed with the help of Joker's cellmate, a mad scientist. It could travel to the sun, and had an interplanetary microphone for making pronouncements.
Just as Batman and Robin do not go at crime-fighting alone, Gotham City's most notorious villains need fellow partners in crime to assist them with their malicious schemes.
Cheerleader Suzy- Captain of the Woodrow Roosevelt High School Cheerleader Squad, and secret member of Joker's gang. Once Joker has no further use for her, he gives her a bottle of poison in the guise of Canadian perfume. Batman and Robin save her life and she reveals Joker's plans. She is sent to The Wayne Foundation for Delinquent Girls.
Nick- Member of Joker's gang who was with Suzy when Dick Grayson tried to infiltrate the Joker's gang. Nick saw through Grayson's bad-boy image because Dick couldn't smoke a cigarette without choking.
Venus- an unreluctant assistant to Joker during his Zodiac Crimewave. She wanted to do good, but was easily distracted by expensive gifts of perfume and champagne. But whenever she helped Joker, she almost immediately felt bad about it. After talking with Batman a few times, she was won over by his charm and betrayed Joker, but it wasn't that easy. She was thrown into a pool with a giant man-eating clam, but Batman rescued her. It is not known what ultimately became of her, though Commissioner Gordon did say that the courts would take her change of heart into consideration.
Mercury, Saturn, Mars, Uranus, Neptune, Jupiter- henchmen
Josie Miller- a girl with big dreams, she was happy to get engaged to Bruce Wayne as part of Joker's scheme. Unfortunately for her, the engagement was soon anulled.
Mr. Glee, Mr. Yock, Mr. Boff- robots that Joker controlled by remote voice commands. Joker learned to build them as his manual training project the last time he was in prison. Mr. Glee was destroyed when Batman twisted his nose after discovering that he had no sense of humor.
Cornelia- very vain, always looking into a mirror or other reflective surface. Enjoys fur coats very much. Says when there are no mirrors around, she gets thirsty.
Latch and Bolt- henchmen, also good friends of Joker. They feel they owe their lives to him, after he broke them out of prison, threw their parole officer in Gotham River, kidnapped the entire jury at their trial, and held the judge's wife hostage.
Baby Jane Towser- heiress to the paper clip fortune. She was impressed by Joker's skill in the Art Competition, and couldn't refuse to help him when he told her that she was his muse. After he robbed her family's wing of the Gotham Art Museum, she realized he was no artistic genius.
Riptide and Wipe Out- surfer henchmen. Their special skill is making surfboards.
Undine- a cute beach bunny who worked part-time in the Surf Shop at Gotham Point.
Catwoman- she recruited him to help her find a hidden hoard of gunpowder. She was even nice enough to pick him up at prison when he was paroled.
Mrs. Green- as a part of Joker's Martian invasion hoax, she went to the police claiming to have seen a three foot tall alien in Gotham Park.
Professor Greenleaf- also tried to stir up invasion anxiety, he tried to convince Barbara Gordon and her father that Gotham would soon be filled with organisms from outer space. He too was on Joker's payroll.
Emerald- another of Joker's not-so-helpful female assistants.
Shamrock, Chartreuse- henchmen.
Verdigris- disguised himself as a Martian in a green business suit and ran around Gotham frightening citizens. He also helped fly Joker's flying saucer.
Queenie- when she was captured by Batman, she tried to get out of it by coming on to him. Batman would have none of it.
Oliver, Stanley, Ernie, W.C. Fields- simple henchmen who bore no reseblance to the originals.
To some people villainy is a job; but, unlike the rest of the law-abiding citizens of Gotham City, villains do not work in an office, factory, or from their own homes. They must establish a 'hideout' from which they can organize and orchestrate their evil deeds.
- an abandoned launching pad factory on Flying Circus Hill
- Gotham Pier Amusement Park
- The Easy Living Candy Store
- Ferguson Novelty and Magician Supply Company
- Penthouse Publishers, formerly innocent purveyors of mirth
- a pad located at 1 Duggan Alley
- Joker Art Institute and lair of artistic instruction
- Ten Toes Surfboard Shop
From time to time, those nasty villains would resort to insults. What follows are the names used by Joker.
- Hooded Hodads
- Dynamic Demigods
- Caped Cabbageheads
- Caped Curmudgeons
- Tenacious Twosome
- Blundering Bipeds
- Hooded Has-beens
- Dashing Diamonds of Daring-Do
- Boy Blunder
- Boy Bonehead
- Erroneous Urchin