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Bernadette Rostenkowski-Wolowitz

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The Big Bang Theory Character Guide

Bernadette Rostenkowski-Wolowitz, PhD is originally a waitress and co-worker of Penny's at The Cheesecake Factory, using her wages to pay for her graduate studies in microbiology. She is a smart, short-tempered, ruthless, and often competitive young woman who sometimes displays a sweet, nice, and friendly personality. Despite her squeaky voice, she has a darker side.
Bernadette is of Polish origin and Catholic upbringing, and was originally seen wearing a cross necklace. She frequently manipulates people, often pretending to be a friendly and good-natured individual, quickly making friends with Penny and Amy, as well as the rest of the gang. Despite her short stature, she is regarded as being somewhat intimidating, largely because of her sharp tongue, aggressive demeanor, and occasional signs of mania. In season eight's "The Locomotion Interruption", Penny interviews for a pharmaceutical sales representative position with Bernadette's boss, and secures it because she concurs with his opinion that Bernadette is kind of a bully and that they are slightly terrified of her.
Penny first introduced Bernadette to Howard on Leonard's request. During their first date, Bernadette and Howard do not find any common field of interest until they discover that they both have domineering mothers. After their third date, Bernadette declares that three dates is the threshold for deciding whether they want a long-term relationship. Blindsided, Howard hesitates initially, causing a temporary rift between them, but then impulsively proposes marriage to show her that he does care about her. Frustrated, she declines, but when he sings a heartfelt song for her at The Cheesecake Factory, she declares that it is the most romantic thing anyone has ever done for her and their relationship continues.
In her initial appearances in the third season, Bernadette does not use her high-pitched speaking voice and is portrayed as almost a dim-witted blonde by taking things literally and not understanding even the simplest of ideas. She mentions this fact in season four's "The Alien Parasite Hypothesis", where she says she is much smarter than Howard, but in order to protect Howard, she acted dumber. In the fourth season finale, she obtains her doctorate and is subsequently hired by a pharmaceutical company that offers her a high salary. Howard and Bernadette marry the day before Howard leaves for his upcoming mission to the International Space Station.
During seasons six and seven, the newlyweds deal with Howard's difficulty in readjusting to life on Earth, the struggle to keep a healthy relationship with Howard's mother, and arguments over money. In the ninth-season episode, "The Valentino Submergence", Bernadette reveals that she is pregnant, informing Howard in the next episode. Raj learns about the baby's gender and inadvertently reveals that the child is a girl. In "The Birthday Synchronicity" Bernadette gives birth to a girl named Halley who screams like the baby's late grandmother, Debbie Wolowitz.
In season 11, Bernadette learns that she is again pregnant, while Howard is telling her Sheldon and Amy got engaged. Her doctor puts her on six months of bed rest, which makes her fond of watching detective- and criminal-themed TV shows. In "The Neonatal Nomenclature" Bernadette gives birth to a boy named Neil Michael Wolowitz, but she insists that she and Howard call him by his middle name. In season 12, Bernadette pushes Penny in her sales career.