Batfink is an American animated television series, consisting of five-minute shorts, that first aired in April 1966. The 100-episode series was quickly created by Hal Seeger, starting in 1966, to send up the popular Batman and Green Hornet television series, which had premiered the same year.

It depicts an anthropomorphic bat cyborg who acts as superhero and a martial artist who is acting as his sidekick. The main villain is a mad scientist who seeks world domination.

Batfink is a bat superhero with metal wings. With the help of his sidekick, Karate, he fights crime in his city, usually against his recurring villain, Hugo A-Go-Go, but also against others.

Many episodes place Batfink in a dangerous cliffhanger-type situation; typically, this is effected by trapping him in some sort of bondage, placing him in a position that renders his wings useless. At the moment the potentially fatal shot is fired, the action freezes, and the narrator asks dramatically if Batfink will survive. The action then continues, with Batfink escaping via a convenient but previously unseen deus ex machina or through the use of his superpowers.

Batfink (voiced by Frank Buxton) is a superpowered anthropomorphic grey cyborg bat in a yellow costume with a big red "B" on the chest and red gauntlets and boots. He uses his supersonic sonar radar and black metallic wings to fight crime. When not fighting crime, Batfink lives in a split-level cave, though he also has a direct video link to the Chief's office in case his help is needed.

Batfink's "supersonic sonar radar" is a super-powered version of a bat's echolocation, used to locate prey. Batfink's power takes the form of the letters of the word "BEEP" either once or twice emanating from his mouth. The radar is anthropomorphic and sentient and can fly wherever Batfink needs them to go – accompanied by a distinctive beeping noise. His catchphrase during that time is "My supersonic sonar radar will help me!" Whenever Batfink said those words, he would say it through the open sun roof of the Battilac car, while it was not in motion. The radar can see, feel fear, evade capture and report back to Batfink on what it has seen. In one episode, the radar is ambushed and beaten up. The radar also gets confused, misdirected, and lost, leaving Batfink to rely on other means to spy upon the episode's villain. Once, when the radar is sent to investigate Queenie Bee and her swarm of villainous bees, it returns with the "EEP" swollen with bee stings. When Karate asks Batfink "How come they just stung the E-E-P?", he replies "Because a bee would never harm another bee. But a bee will tell on another bee.". The literal spelled-out appearance of an onomatopœia was a running gag not limited to the supersonic sonar radar; in one episode, Hugo A-Go-Go invented a tickling stick that tickles its adversaries into submission, which sent out the words "Kitchy Koo" to do the deed on Batfink (the episode ended with Batfink slicing the K's off to create the far more irritating, but less distracting, "Itchy Oo").

Batfink's main defense are his metallic wings, which he is able to fold around himself as a protective shield against most attacks, thereby spawning the most famous catchphrase of the show: "Your bullets cannot harm me – my wings are like a shield of steel!" He claims in some episodes that his wings are stainless steel, but in other episodes he explicitly states that they are not – since he always carries a can of spot remover to keep them polished. Batfink can also use his wings as offensive weapons. In one episode, he uses one of them as a sword during a duel. His wings can also help him fly at incredible speeds. They are often used to help him escape certain death or cut through bonds when he has been captured (he can break out of regular ropes, but not rubber ones). In the episode "Ebenezer the Freezer", Batfink has automatic retrorockets built into his wings, but not in any other episode. Sometimes, his wings hinder him. When in water, he will sink because of the weight of his metal wings. Powerful magnets are also a problem for him. Plutonium, for reasons unexplained (but possibly relating to his birth in a plutonium mine), also renders the wings useless. Batfink's life and wings are explained in the final episode, "Batfink: This Is Your Life", which depicts his boyhood and how his real wings were replaced.

Batfink rides in a customized pink car resembling a Volkswagen Beetle with scalloped rear fins and bat-winged red "B" emblems on the doors and hood. Called the "Battillac" (rhymes with "Cadillac"), the car is outfitted with a sun roof and many defensive devices, and is resistant to collision damage and energy weapons. Batfink often says something like "It's a good thing the Battillac is equipped with a thermonuclear plutonium-insulated blast shield!" and Karate replies, "It's also good it was a small bomb". As soon as a crime is acknowledged, Batfink says "Karate, the Battillac!"