All of the main characters in The Big Bang Theory work in the field of sciences, either as neurobiologists, microbiologists, physicists, etc, with the exception of Penny, who was a waitress/actress and then a sales representative. The Big Bang Theory places a lot of emphasis on the characters' professions in addition to their friendships and romantic relationships. After all, Sheldon's obsession with the sciences accounts for the majority of his eccentricities.
Everyone in the group is employed in the sciences except Penny, who was first a struggling actress, then a waitress, and then a sales representative.
Raj (Astrophysicist)
Raj obtained his PhD in astrophysics after attending the University of Cambridge, where he later worked as an astrophysicist. Raj participated in the team at Caltech that developed a data-gathering space probe for Pluto and received numerous honors for his work. He later collaborated with Sheldon on projects involving dark matter and string theory.
Despite Sheldon's pretense that he doesn't need to work in a group because he is smarter than everyone else, Raj's input was crucial for and greatly benefited Sheldon. By the end of the series, Raj was still employed by Caltech but had taken a job as a hobbyist at the Griffith Observatory.
Sheldon (Theoretical Physicist)
Sheldon Cooper is one of the smartest characters on "The Big Bang Theory." Sheldon earned his PhD at the tender age of 16, in addition to his Bachelor of Science, Master of Science, Master of Arts, and Doctor of Science degrees. Sheldon, a theoretical physicist at Caltech who has an IQ of 187, specializes in string theory.
Later, after running into a brick wall with string theory, he shifts his attention to dark matter. Sheldon, however, never really gives up on string theory. He worked hard to demonstrate the super-asymmetry of string theory with Amy's assistance, and their efforts were recognized with a Nobel Prize. Sheldon is still extraordinarily satisfied to be working in the Physics Department at Caltech by the end of the series.
Leonard (Experimental Physicist)
After graduating with a PhD in physics from Princeton, Leonard worked as an experimental physicist at Caltech, where he also met his closest friends. A few prestigious journals published his work, and he received praise for his scientific contributions. When he started working for the American government alongside Howard and Sheldon, this led to the start of his career.
He even had the opportunity to work in the North Sea with a team assembled by Stephen Hawking. Leonard was at a professional standstill by the finale of the series, but he continued to produce incredible work that was praised by Sheldon and President Siebert.
Howard (an engineer and astronaut)
Howard is a fantastic engineer who deserves praise for his work, despite Sheldon's lack of respect for him. Howard attended MIT and graduated with a master's in engineering with a concentration in aerospace. He contributed to the design of a satellite that orbited Jupiter and had the ability to command the Mars Rover.
Howard was given the chance to work with NASA and visit the International Space Station because of his spaceflight experience. He counted it among his career's most fulfilling moments. He later came up with a theory based on Leonard and Sheldon's work to create a Quantum Guidance System for the U.S. Air Force.
Bert (Geologist)
Dr. Bertram "Bert" Kibbler works for the Caltech geology division. Because of his benevolent demeanor on the show, Bert is known as a "gentle giant." Due to his expertise in geology, he frequently cracks jokes about rocks and stones. He made twelve appearances in twelve seasons of The Big Bang Theory.
Barry Kripke (Plasma Physicist)
Leonard and Sheldon work with Barry Kripke, Ph.D., a former plasma physicist turned string theorist at Caltech. He has rhotacism, which makes him sound like Elmer Fudd from Looney Tunes when he pronounces "R" and "L" as "W." He's a jokester who hangs out with Amy, Leonard, Howard, and Raj. He and Sheldon Cooper also have an erratic platonic relationship.
His work on a grant proposal for a new fusion reactor serves as an example of one of Kripke's research specialties, the physics of fusion plasmas. The term "string pragmaticist" has also been used to describe him. Since he specializes in plasma physics, he probably investigates the relationship between string theory and quark-gluon plasma.
Leslie (Experimental Physicist)
Leonard works in the same lab as Dr. Leslie Winkle, Ph.D., an experimental physicist at the California Institute of Technology. Quite similar to Leonard, she has black-framed glasses, zippered hoodies, and other similar physical characteristics, making her essentially his female counterpart. Every time she is shown in the lab, she is misusing the tools to make meals. For example, she might flash-freeze a banana with liquid nitrogen before smashing it with a hammer to put it in her cereal or heat a cup of instant soup with a helium-neon laser.
She had an on-again, off-again relationship with Leonard and later with Howard. She is arguably the main antagonist of the second season because of how shallow and cunning she is, despite the fact that the only true hostility she ever manifests is towards Sheldon. In "The Lunar Excitation," Leslie turned down Leonard's invitation to engage in casual sex, marking her final appearance as a recurring character.
Alex (physics doctoral student)
Sheldon Cooper's assistant and a doctoral student in physics at Caltech is Alex Jensen. Instead of helping Sheldon with his research, Alex is frequently asked to carry out menial tasks. She frequently adopts a very wide-eyed posture when dealing with the gang's unusual behavior. Alex manifests a strong attraction for Leonard, who is initially unaware of it, much to Penny's dismay and with Sheldon's assistance.
Alex's presence was meant to make Penny realize that other intelligent and attractive women are also interested in her boyfriend Leonard. Since Alex hasn't appeared since Season 6 and there hasn't been any mention of her fate, it's unclear what happened to her after her last appearance. It's also unclear if she resigned or was fired from her position as Sheldon's assistant.
Janine (HR Administrator)
The Human Resources Management administrator at Caltech is Mrs. Janine Davis. She works in human resources, which is the division responsible for enforcing political correctness at the school, among other things. In "The Egg Salad Equivalency," she first made an appearance.
Howard Wolowitz would frequently be sent to Mrs. Davis by the Caltech staff and faculty due to his inappropriate sexual behavior and innuendo-filled remarks before Mrs. Davis made an appearance on the show. Visits happened every other day until they knew each other by first names. When Leonard and Penny introduced Howard to Bernadette, this eventually came to an end. Given that Raj is acquainted with her from the workplace Christmas party and that Catherine Millstone once accused Raj of sexual harassment after he made an inappropriate comment to her while intoxicated.
FAQs
Q. What is The Big Bang Theory?
A. The Big Bang Theory is an American television sitcom created by Chuck Lorre, Bill Prady, Steven Molaro, and others. All three served as the show's executive producers and head writers.
Q. Why did Sheldon win a Nobel Prize?
A. Sheldon won a Nobel Prize with the help of Amy, for his work in String Theory as a Theoretical Physicist.
Q. How many degrees does Sheldon have?
A. Sheldon Cooper with an IQ of 187 has Bachelor of Science, Master of Science, Master of Arts, Doctor of Science and a PhD.
