: Played by Johnny Galecki, a physicist who is immediately infatuated with Penny. Sheldon Cooper
: A waitress at the Cheesecake Factory who provides a "normal" perspective to the group's high-intellect lifestyle. big bang theory s01
Penny pours herself a cookie, eyes the whiteboard filled with equations and a crude sketch of a superhero wearing goggles. : Played by Johnny Galecki, a physicist who
: Much of the season focuses on Leonard's clumsy attempts to win Penny’s affection. This culminates in their first official date in the season finale, " The Tangerine Factor ." : Played by Johnny Galecki
Sheldon: Cookies are acceptable bribes for temporary displacement of a human occupant, provided they contain a mix of chocolate and a genetically stable flour substitute.