Sheldon !! What are you doing in my BEDROOM!!! The Big Bang Theory

Penny continues to have doubts about her relationship with Leonard. Meanwhile, Howard becomes the target of practical jokes on the space station.

Sheldon intervenes when he learns that Penny is thinking about breaking up with Leonard, but he is hampered by his inability to keep a secret. Meanwhile, in space, Howard is being picked on by the other astronauts

Sheldon cooper - jim Parsons
Penelope "Penny" Hofstadter - Kaley Cuoco
Dr. Bernadette Maryann Rostenkowski-Wolowitz
Leonard Hofstadter
Amy Farrah Fowler
Howard Wolowitz
Raj Koothrappali
Missy Cooper
George Cooper Jr
Priya Koothrappali