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The Cast Of “The Big Bang Theory” Then And Now

This year marks the show’s 10th year in production. Time flies!

1. Jim Parsons in 2007:

Mark Mainz / Getty Images

2. Jim Parsons in 2017:

Valerie Macon / AFP / Getty Images

3. Kaley Cuoco in 2007:

Michael Buckner / Getty Images

4. Kaley Cuoco in 2017:

Alberto E. Rodriguez / Getty Images

5. Johnny Galecki in 2007:

Charley Gallay / Getty Images

6. Johnny Galecki in 2017:

Jonathan Leibson / Getty Images

7. Kunal Nayyar in 2007:

Frederick M. Brown / Getty Images

8. Kunal Nayyar in 2017:

Alberto E. Rodriguez / Getty Images

9. Mayim Bialik in 2009:

Michael Tran / FilmMagic

10. Mayim Bialik in 2017:

Dimitrios Kambouris / Getty Images

11. Simon Helberg in 2007:

Charley Gallay / Getty Images

12. Simon Helberg in 2017:

Frazer Harrison / Getty Images

13. Melissa Rauch in 2010:

Frazer Harrison / Getty Images

14. Melissa Rauch in 2017:

Alberto E. Rodriguez / Getty Images

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