When 'The Big Bang Theory' started back in 2007 no one could have guessed the gravity of this humble sitcom. It had its tenth season air in 2016 and has since been renewed for an additional two seasons. That's a mammoth total of 12 seasons. Yet watching the show it feels like just yesterday that it all started. The stars themselves have come a long way since the shows start, but as with any rise to fame there is the good and the bad.
Kunal plays the role of Raj Koothrappali, a co-worker of Sheldon and Leonard at Caltech. Raj played by Kunal is an example of the type of original an innovative characters featured within 'The Big Bang Theory' that has helped lead to its extraordinary success.
Kunal Nayyar is a British-Indian actor and according to Forbes, he was third on the list of World's Highest-Paid TV Actors for 2015 with earnings of US$20 million. It looks like his gig on 'The Big Bang Theory' has done well for his bank account.
Jim's role in 'The Big Bang Theory' has perhaps the biggest personality. Sheldon Cooper, his character, is the very quirky physicist working at Caltech. Jim's portrayal of Sheldon's personality was appreciated as a breakout member at the show's debut.
Jim is an American actor and while he's done work outside of 'The Big Bang Theory', he is most recognised for his work as Sheldon Cooper. He's received several awards for this role including four Primetime Emmy Awards for Outstanding Lead Actor in a Comedy Series and the Golden Globe Award for Best Actor in a Television Series Musical or Comedy.
Kaley plays the role of Penny in 'The Big Bang Theory'. Penny sets the series' story in motion when she moves into the apartment across the hall from Leonard and Sheldon, filling the role of the beautiful blonde next door... next door to a group of nerds.
Kaley started her television career with her breakthrough role as Bridget Hennessy on the ABC sitcom '8 Simple Rules' until 2005, she then had a role as Billie Jenkins in the final series of 'Charmed'. As Penny, she's received awards and most importantly won the hearts of millions.
Johnny Galecki plays the role of Leonard Hofstadter on 'The Big Bang Theory', he's the flatmate and associate physicist at Caltech. Johhny was originally invited to play Sheldon but saw himself more fitted to the role of geeky Leonard who later becomes Penny's love interest.
Johnny is an American actor known for playing David Healy in the ABC sitcom 'Roseanne' from 1992 to 1997 as well as his role as Leonard. He's also made appearances in several films including 'In Time', 2011. He's even a cellist in real-life too!!
Mayim Bialik was not apart of the original cast and joined the series in in 2010 as Dr. May Farrah Fowler. Mayim herself, as if made for the role, has obtained a doctorate in neuroscience in real life too. Amy meets Sheldon on a dating site and the rest is history.
Mayim Chaya Bialik is an American actress and neuroscientist. From 1991 to 1995 she played the title character in NBC's 'Blossom', and joined 'The Big Bang Theory cast since 2010. A role for which she has had 4 nominations for awards and won a Critic's Choice award too.
Simon has been apart of the cast since its debut in 2007 as an MIT grad and aerospace technician. Howard Wolowitz was one the shows wittier characters, with his love of ridiculous belt buckles and stereotypical Jewish other to survive.
Carol Ann Susi was an American actress who sadly passed away in 2014. She was a part of 'The Big Bang Theory' since the beginning, as the voice of the recurring and unseen character Debbie Wolowitz, Howard's hard to handle mother.
Melissa's character Bernadette works with Penny at The Cheesecake Factory while she is studying to get her PhD in microbiology. She is a kind character and a high voice like that of a kewpie doll. Her character learnt that she was short because her mother smoked during pregnancy.
Kevin Sussman debuted on the show in season 2 as Stuart Bloom who worked in the comic book store. His part started as minor, but he grew a constant presence and by season six was a series established star. Since then he's been scheduled as a return character however.
John Ross Bowie plays the returning character of Barry Kripke who is a plasma physicist at the California Institute. He is a rival of Sheldon, and an antagonist of the other three guys too. He plays an annoying character with a strong lisp and a taste for making fun of others.