Plot: Sheldon and Amy are thrilled when their super asymmetry theory is proven by two physicists, until they try to kick Amy off the Nobel nomination. Also, Bernadette gets one of her drugs approved at work and wants a reluctant Penny to head the sales team



Johnny Galecki
Jim Parsons
Kaley Cuoco
Simon Helberg
Kunal Nayyar
Melissa Rauch
Mayim Bialik
Keili Lefkovitz
Chasty Ballesteros
Kal Penn
Sean Astin
Joshua Malina
Caleb Pierce
Mark Cendrowski