The Big Bang Theory: 10 Worst Characters Who Appeared After Season One
4. Priya
Raj's sister, Priya, was introduced in The Big Bang Theory during Season 4. At first, she came across as a really engaging character. Being smart, confident, and charming, she was the complete antithesis of her brother. Being a solicitor, she used her legal knowledge to find inconsistencies in Sheldon's Roommate Agreement, making her one of the first people to utterly destroy Sheldon in an argument. So, when she hooked up with Leonard and became a recurring character, viewers looked forward to seeing more of her.
Slowly but surely, Priya became an enemy to the whole ensemble, as well as the viewers. She kept Leonard on a tight leash and urged him to change every facet of his life until he barely resembled the man he once was. She didn't respect him since she only discussed his sexual proclivities, much to his embarrassment.
When she learned Leonard had dated Penny in the past, he ordered him never to see her again. Unsurprisingly, this was the last straw for Leonard. After seeing Priya for what she really was, Leonard dumped her, much to the relief of viewers.