Alex Jensen

Alex Jensen is a character that will be introduced on the third episode of the sixth season of The Big Bang Theory, entitled The Higgs Boson Observation. Alex is hired by Sheldon, who needs someone smart enough to read through his preschool works, to find out if he has made a scientific breakthrough regarding the Higgs boson particle. Alex happens to be a very attractive Physics grad student, who knows how to sweet talk into getting her way, such as showering Sheldon with flattery to get hired, and he falls for it, even though he tells her flattery will not get her anywhere. Alex triggers Amy's jealousy, when she picks up a video call meant for Sheldon, where Amy learns that Alex is a girl. This results in Amy getting Penny to spy on her at Caltech's cafeteria, to find that, Alex, despite working with Sheldon, is fascinated by Leonard and is seen flirting with him.