Griffin, also known as the Invisible Man, is a fictional character who serves as both the protagonist and antagonist of H. G. Wells' 1897 science fiction novel The Invisible Man. In the original work, Griffin is a scientist whose research in optics and experiments into changing the human body's refractive index to that of air results in him becoming invisible. After becoming invisible, he wraps his head in bandages and dons a pair of goggles or glasses in order to enable others to see him. Unable to reverse the invisibility process, he descends into insanity and becomes a criminal.

The character and variations thereof have been featured in various media, including films, television series and merchandise. The most famous non-literary incarnation of Griffin is portrayed by Claude Rains in the 1933 film The Invisible Man, distributed by Universal Pictures. The film spawned a number of sequels that feature different invisible characters. Griffin and the 1933 film have become iconic in popular culture, particularly in regards to horror fiction. A new film, loosely inspired by the original novella and the original film, again titled The Invisible Man, was released in 2020.

Overview Griffin is a brilliant research scientist who discovers a formula for making a human being invisible. The formula entails taking opium and another drug, which makes his blood boil, then processing his body in a radiator engine. He succeeds, but he finds himself unable to reverse the process. Unlike the character in the 1933 film, the Griffin of the novel is possibly a psychopath or sociopath even before he makes himself invisible.

In the novel Griffin is a gifted young medical student with albinism who studies optical density. He believes he is on the verge of a great scientific discovery, but feels uncomfortable working under his professor named Hobbema (whom he calls a "thief of ideas"). To ensure that he gets sole credit for the discovery, he leaves the university and moves to a dingy apartment to continue his experiments alone.

To finance his experiments, Griffin robs his own father, which drives the father to commit suicide (because the money had not even been his own). Working as a recluse in his flat, Griffin invents a formula to bend light and decrease the refractive index of physical objects, making them invisible. He intends from the start to perform the process on the neighbours' cat and then on himself, but is forced to rush his experiments due to persistent intrusion from his landlord, who is suspicious of his activities and considers him to be a vivisectionist. He processes himself to hide from his landlord and sets fire to the building to cover his tracks. He winds up alone, wandering invisible and naked through the streets of London, struggling to survive out in the open, unseen by those around him.

To make himself visible again, Griffin steals some clothes from a dingy backstreet theatre shop, including a trench-coat and hat. He wraps his head in bandages to conceal his invisibility, covering his eyes with large dark goggles. He takes up residence in the Coach and Horses Inn in the village of Iping so he can reverse his experiment in a quiet environment. Complications arise with locals unnerved by his appearance, particularly Teddy Henfrey, a clock-jobber who considers him to be a criminal evading prosecution, and Mr. Cuss, who first encounters his invisibility. As a result, his progress slows and he has insufficient money to satisfy the innkeeper Mrs. Hall. To pay the bill, Griffin burgles the home of Reverend Bunting. The police pursue him and in a fit of frustrated anger, he reveals his invisibility by throwing off his clothes and escaping.

Now driven insane by his inability to reverse the experiment, Griffin seeks assistance from a tramp named Thomas Marvel. He has Marvel carry money for him, but Marvel runs away with the money. Griffin pursues him to the town of Port Burdock where he runs into his old schoolmate Dr. Kemp. Still bitter and angry towards the rest of humanity, Griffin attempts to convince Kemp to be his visible partner and help him begin a "reign of terror". Kemp, rather than assisting the crazed Invisible Man, alerts Colonel Adye of the Port Burdock police. Furious, Griffin vows to kill Kemp, but is forced to flee.

Kemp rallies the people of Port Burdock, who find and overcome Griffin when he attempts a one-man siege on Kemp's house. Griffin is surrounded and savagely beaten by navvies. His last words are "Mercy! Mercy!", prompting Kemp to call off the mob and administer first aid, though it is too late. Griffin dies, becoming visible again, revealing a brutally battered corpse. A police officer asks for a blanket to cover Griffin's face.

Universal Monsters

In the 1933 film The Invisible Man, Griffin's first name is Jack (the novel never reveals his first name). He was played by Claude Rains.

Jack Griffin works for Dr. Cranley, assisting him in food preservation experiments alongside his friend Dr. Arthur Kemp. Griffin is deeply in love with Cranley's daughter, Flora, and the two plan to marry, but Griffin is poor and thus afraid he has nothing to offer her. He begins experimenting with an obscure and dangerous drug called monocane, hoping his work will make him rich and famous—and a worthwhile husband for Flora. Griffin discovers a combination of monocane and other chemicals that makes a person invisible. Too excited by his discovery to think clearly, Griffin leaves Kemp and the Cranleys to complete the experiment in solitude. He injects himself with the formula over the course of a month and becomes invisible. Only after he is invisible does he realize that he does not know how to reverse the process. Panicking, Griffin goes to the village of Iping and rents a room in the Lion's Head Inn, where he begins searching for a formula to reverse the invisibility. He makes himself appear visible by wrapping his head in bandages and wearing dark goggles. Curious locals, the maddening side effects of monocane, and frustration from multiple failed tests drive Griffin insane. After he assaults Jenny Hall and severely injures her husband Herbert, Griffin is confronted by the police, but sheds his clothing to be invisible and eludes them. He seeks help from Kemp, but the monocane has so affected his mind that he succumbs to megalomania and plans world domination with "invisible armies". He wants to make Kemp his visible partner and assistant. Not even a visit from Flora and her father helps ease Griffin's increasing insanity. He vows to kill Kemp after his old friend alerts Inspector Lane to his whereabouts and despite intensive police protection surrounding Kemp, Griffin eventually makes good on his threats. After killing Kemp by tying him up in his car and sending it over a cliff, he seeks refuge from the cold in a farmer's barn. The farmer summons police, who set fire to the barn. As Griffin flees the burning barn, the Chief of Detectives, who can see his footprints in the snow, shoot at him, the shot passing through both of his lungs. Griffin dies from the gunshot wounds in the hospital. During this, the effects of the monocane begin to wear off and Griffin returns to sanity apologizing for his crimes by saying "I meddled in things that man must leave alone". The invisibility also wears off in death and Griffin's body becomes visible again.

The film portrays Griffin more sympathetically than the novel. The novel's Griffin is callous and cruel from the beginning and only pursues the experiment for wealth and his ego. The movie shows Griffin as an honorable man who is misguided. His insanity is purely a side-effect of the invisibility drug and his motivation for the experiment was a misguided desire to do good for science and mankind, born primarily out of his love for his fiancée.

Other Universal incarnations The Invisible Man Returns (1940): Vincent Price stars as Sir Geoffrey Radcliffe / Invisible Man, the owner and heir to a coal mining factory. Radcliffe tries to clear himself of a murder charge of the death of his brother, Sir Michael Radcliffe. He receives the invisibility serum from Jack Griffin's brother and his best friend Frank Griffin, and later escapes from his execution to his friend and worker Ben Jenkins's house and lives there for a while, reuniting with his lost love Helen Manson as well. However, cops arrive at the place, causing Geoffrey to escape and later meet Frank again at his coal mining factory, where he overhears former night watchman, now superintendent Willie Spears, threaten to shut Griffin's laboratory down. Geoffrey realizes that Spears helped in killing his brother and goes and starts interrogating him by turning off his car engine and beating him to the point where Willie finally tells him who did the murder before falling unconscious. Geoffrey then finds out that his cousin Richard Cobb was the killer and later goes to his house and threatens him in front of Helen. Richard calls the cops, and they try to catch Radcliffe; however, he manages to escape quickly and then goes back to Helen and Frank and soon starts to go mad, causing Frank to lock him up before the police arrive. In the commotion, Geoffrey escapes from Frank as well, and the next morning, he threatens to kill Cobb with a revolver and walks him to Willie Spears's house. It is also revealed that Geoffrey hanged Spears, but the latter is still alive to tell Geoffrey that Cobb murdered Michael, which makes Richard kill Willie and then escape from Radcliffe, who chases him to the coal mining factory, where Helen and Frank are also. The former two (Geoffrey and Richard) fight on top of a coal train track on a wagon, with Geoffrey defeating Cobb before getting shot by Police Inspector Sampson from down below, whilst the wagon crashes downwards. After the commotion, Geoffrey is injured and taken to the hospital, whilst Richard finally tells Frank, Helen, and Sampson that he killed Geoffrey's brother before dying. Geoffrey is expected to die, but one of the workers donates his blood to Frank who uses it to revive, heal, and revert Geoffrey to human form, ending with Geoffrey being alive and reuniting with Helen as Frank smilingly watches on.