Ghostbusters

Winston Zeddemore's first on-screen appearance is in the movie Ghostbusters, when he responds to a help-wanted advertisement the team has posted in an attempt to deal with their sizable workload. Questioned extensively during his application by Janine Melnitz as to whether he believes in a large number of supernatural occurrences and beings (such as UFOs, the Loch Ness Monster and the theory of Atlantis among others), Zeddemore replies, "If there's a steady paycheck in it, I'll believe anything you say." Later in the movie, having seen the level of paranormal activity present in the city, he remarks, "This job is definitely not worth eleven-five [$11,500] a year!"

Though Zeddemore has no previous background in paranormal studies and is not initially a firm believer in the existence of the paranormal, he readily accepts the existence of ghosts and the supernatural as he encounters them as a Ghostbuster. However, despite this, he continues to act as an 'everyman' and voice of reason for the team, and when the jailed Ghostbusters seriously proposes asking a U.S. federal judge to release them because they must fight an invading god, Zeddemore reminds the others that no one will believe their claims.

Egon Spengler is a tall, laconic, bespectacled, awkward member of the team responsible for the main theoretical framework for their paranormal/quantum studies.

Being addicted to science, he is the creator of the Ghostbusters' equipment along with Raymond Stantz, thus making him the brains of the Ghostbusters. Although book smart, Spengler does not have much social ability, as demonstrated by his stiff interactions with the Ghostbusters' secretary Janine Melnitz, and his reliance on Peter Venkman as spokesperson for the group.

Spengler is the most serious and rigid member of the team. Of his hobbies, Spengler states that he collects "spores, molds, and fungus", and claims that, as a child, the only toy he ever had was "part of a Slinky", which he straightened out.

Ray is an expert on paranormal history and metallurgy.

He is characterized by his almost childlike enthusiasm towards his work, and his forthright acceptance of paranormal activity. As a result Peter once during the movie referred to him as "the heart of the Ghostbusters". Ray has extensive knowledge of the Bible (to the point of even quoting a specific book and chapter -- "I remember Revelation 7:12"—about the end of the world, though the passage he quotes is actually Revelation 6:12), but is an agnostic, commenting when asked if he believes in God, "Never met Him". 

Peter is one of three doctors of parapsychology on the Ghostbusters team. He holds PhDs in both parapsychology and psychology.

In The Real Ghostbusters series, Peter's womanizing is toned down somewhat (though he is still quick to approach attractive women), but he retains his quick wit and cynical demeanor, and his arrogance is played up more. While not the official leader of the group, Venkman is the closest thing they have to one, and often makes the decision whether the Ghostbusters will take a case or not. He often reinforces the prospect of Ghostbusters being a business and, with rare exceptions, opposes ghostbusting without the promise of equity.

She is the Ghostbusters' secretary and confidante.

Throughout most Ghostbusters media, Janine is often displayed as having a romantic attraction to Egon Spengler. This is shown in the first movie and more prominently in the The Real Ghostbusters cartoons.

While not much is known about her history, she is from Brooklyn as her voice suggests.

She does have a Brooklyn accent.

In the script for Ghostbusters, Slimer is never called by any name, but is described as a "focused, non-terminal repeating phantasm or a class 5 full roaming vapor". The creature's original title was "The Onionhead Ghost", which the film crew dubbed him for the horrible odor he used to scare a couple in a scene cut from the original movie. Slimer’s personality is one of tremendous gluttony, and he is referred to as a “disgusting blob”. In the movies, he is not named and is portrayed as an antagonist.

In the cartoon, he is known as Slimer, is able to speak, and demonstrates a child’s intelligence and intense loyalty to Ray and the Ghostbusters with the personality of a dog.