Dana Barrett is the love interest of Peter Venkman in the 1984 comedy movie, Ghostbusters. She is also the unrequited love to her neighbor, Louis Tully.
Dana first calls Peter as a ghostbuster when she believes that there is a ghost, living in her refrigerator. Then, Peter comes and falls for her right away. Later, he neglects to do his job as a ghostbuster, because he is too busy flirting with her.
He eventually checks her fridge, but doesn't find a ghost there. Dana is annoyed with Peter and kicked him out of her apartment.
After ghostbusters became a much more popular company, Dana decided to give Peter another chance. She invites him over to her place for a date. However, before the date, Dana is attacked by a terror dog named Zuul who then possessed her.
When Peter came over, Dana referred to herself as the gatekeeper, awaiting for Gozer to rise to power. She then acts very sexually aggressive with Peter, believing that he is the keymaster.
When she finds out that he's not, she sends him away. Eventually, she finds Louis who had been possessed by the keymaster and together, the two awaken Gozer.
At the end, after the ghostbusters defeat Gozer, Zuul leaves Dana's body and she goes back to normal. Dana and Peter then become a couple.
Apparently, things went for the worse between Ms. Barrett and Dr. Venkman. After they grew apart, seemingly due to Dr. Venkman's fear of commitment and taking her for granted, Dana became involved with her other interest.
They married and had a son they named Oscar. However, their relationship fell apart and he decided to "ditch" her by taking a very good offer from an orchestra in London and breaking up their marriage.
Dana hired Maria to provide daycare for Oscar while she worked at the Manhattan Museum of Art in restorations. She was under the very watchful eye of Janosz Poha, the head of the restoration department.
In late 1989, Dana was given a scare when the stroller containing Oscar rolled off to the middle of First Avenue. She went to Egon Spengler for help and he agreed to look into it with Ray Stantz.
Dana made it clear that she didn't want Peter involved yet still asked about him and admitted that they didn't part on very good terms and sort of lost track of each other after she got married.
Amid this crisis, Dana still planned to resign from the museum and return to the orchestra. Peter found out about the investigation and rekindled his relationship with Dana.
While preparing to give Oscar a bath, a tub full of slime tried to kidnap him. Dana grabbed Oscar and fled to Peter's apartment. Dana and Oscar stayed there as the Ghostbusters continued their investigation. Dana took it upon herself to clean up Peter's place and even found his hamper.
Later, Peter was able to convince Dana to go out to dinner with him. They went to Armand's Restaurant and became closer. However, the romance was interrupted by the arrival of the other Ghostbusters.
Covered in slime and wearing only their long underwear, they made little sense but Dana became alarmed when they revealed the slime flow was heading straight to the Manhattan Museum of Art.
After the police took all four of them away, Dana returned to Peter's place and walked in on Louis and Janine Melnitz making out. Dana went to go check on Oscar.
Vigo had chosen Oscar to be his vessel and tasked Janosz with kidnapping him. Dana only watched in horror as an ethereal Janosz swiped Oscar from the apartment window ledge. Dana recognized Janosz and went straight to the museum.
She was imprisoned by Vigo. As the New Year arrived, the Ghostbusters arrived to save the world. Dana was restrained once more by Vigo. She implored the Ghostbusters to do something.
Peter did his best to stall Vigo and luckily, the singing of bystanders outside weakened Vigo. Peter reunited Oscar with Dana and advised her to take cover.
Once Vigo was defeated, Dana and Oscar went outside the museum with the Ghostbusters. She attended a special ceremony on Liberty Island weeks later in honor of the Statue of Liberty and Ghostbusters.