Simon Helberg as Howard Wolowitz – Then
Though often looked down upon by Sheldon because he ‘only’ holds a Master’s degree in engineering from MIT, Howard eventually manages to parlay his expertise into becoming an astronaut for NASA. In the early seasons, Howard was often trying and failing to score a date with a variety of different women, That all changed with Penny introduces him to her coworker Bernadette in season 3, who was working at the Cheesecake Factory in order to pay for grad school.
Simon Helberg as Howard Wolowitz – Now
Simon is another one of the original cast who has been with The Big Bang Theory since day one, when he was introduced as the nerdy mama’s boy, still caught under his overbearing mother’s thumb. Recently, Simon has also managed to fit in several film appearances in addition to his work on The Big Bang Theory, including a turn as the pianist Cosme McMoon in Florence Foster Jenkins, which also starred Meryl Streep and Hugh Grant.
Laura Spencer as Emily Sweeney – Then
Laura Spencer plays the slightly morbid dermatologist that Raj meets via online dating during the seventh season of the show. She becomes entangled in a love triangle with Raj and another woman he’s dating, Lucy, but Emily is unfazed. The two enjoy watching horror movies together, and she entertains Raj with macabre jokes. They eventually enter into a fairly serious relationship, but Raj finds in the end that he is still struggling with commitment.
