Johnny Galecki Leonard Hofstadter Actor Jim Parsons Sheldon Cooper Actor Kaley Cuoco Penny Actor Simon Helberg Howard Wolowitz Actor Kunal Nayyar Raj Koothrappali Actor Kevin Sussman Stuart Bloom Guest Star Stan Lee Stan Lee Guest Star Steve Paymer Judge J. Kirby Guest Star Marcus Folmar Guard Guest Star Chuck Lorre Executive Producer, Writer Bill Prady Executive Producer, Writer Lee Aronsohn Writer Steven Molaro Writer Steve Holland Writer Maria Ferrari Writer Mark Cendrowski Director