Barry Kripke who is a recurring character in the show appears in every season except Season 1.
Johnny Galecki (Leonard Hofstadter)
Is 6 years, to the day, older than his The Big Bang Theory (2007) co-star, Kunal Nayyar.
Jim Parsons (Sheldon Cooper)
He played a bird in his first school play in elementary school.
Kaley Cuoco (Penny)
In 2010, Kaley was in a horse riding accident and suffered a bad break in her leg. She was written out of two episodes of The Big Bang Theory (2007) and, for several episodes, was only seen sitting down or behind furniture in the writer's attempt to hide the injury from the viewing audience.
Simon Helberg (Howard Wolowitz)
His paternal grandparents were Polish Jews who survived the Holocaust and came to the U.S. after World War II. His mother is of Russian Jewish and Polish Jewish descent.
Kunal Nayyar (Raj Koothrappali)
I'm helping launch the new Milky Way Chocolate Ice Cream Bar. I play an astrophysicist on television, and the name of the bar is Milky Way, so put two and two together, and here I am.
Melissa Rauch (Bernadette Rostenkowski)
Melissa and her husband, Winston Rauch, are expecting their first child [July 11, 2017].
Mayim Bialik (Amy Farrah Fowler)
I came to parenting the way most of us do - knowing nothing and trying to learn everything.
Kevin Sussman (Stuart Bloom)
Attended the College of Staten Island for a year, then transfered to The American Academy of Dramatic Arts. After graduating from AADA, Kevin studied acting with Uta Hagen for four years.