Main Characters
Family Ties
Science and Careers
Friendships and Romances
Show Trivia
100

This eccentric physicist is known for his catchphrase "Bazinga!" and strict routines.

Who is Sheldon Cooper?

100

This devout Christian woman from Texas is Sheldon's no-nonsense mother.

Who is Mary Cooper?

100

This prestigious Pasadena university employs Sheldon, Leonard, Howard, and Raj.

What is Caltech?

100

This couple is the first among the main group to tie the knot.

Who are Howard and Bernadette?

100

This Canadian band performs the show's upbeat theme song.

Who are Barenaked Ladies?

200

This aspiring actress works as a waitress at The Cheesecake Factory and lives across the hall from Leonard and Sheldon.

Who is Penny?

200

This overbearing, unseen mother figure is known for her loud voice and constant yelling at Howard.

Who is Debbie Wolowitz?

200

Howard holds this profession, which allows him to work on space missions.

What is aerospace engineer?

200

This comforting lullaby is sung to Sheldon when he's sick.

What is "Soft Kitty"?

200

The series ran for this many seasons in the early years of the 21st century.

What is 12?

300

This engineer designs equipment for NASA and does not have a PhD.

Who is Howard Wolowitz?

300

This farmer from Nebraska is Penny's supportive father.

Who is Wyatt?

300

Raj specializes in this field of study involving stars and planets.

What is astrophysicist?

300

Leonard and Penny elope and get married in this Nevada city.

What is Las Vegas?

300

This awkward artist owns the comic book store frequented by the gang.

Who is Stuart Bloom?

400

This astrophysicist from India struggled with selective mutism around women unless he's had alcohol.

Who is Raj Koothrappali?

400

This psychiatrist and neuroscientist is Leonard's cold, analytical mother.

Who is Beverly Hofstadter?

400

Sheldon dedicates much of his career to this complex physics concept involving multiple dimensions.

What is String Theory?

400

Sheldon and Amy first connect through this modern matchmaking method.

What is online dating?

400

Howard earns this fruity cereal-inspired nickname from his fellow astronauts.

What is Froot Loops?

500

This neurobiologist marries Sheldon and eventually wins a Nobel Prize with him.

Who is Amy Farrah Fowler?

500

This fraternal twin of Sheldon works at a Fuddruckers restaurant and has a sassy personality.

Who is Missy Cooper?

500

Sheldon and Amy win the Nobel Prize for their work on this theoretical physics idea.

What is super-asymmetry?

500

Raj's Yorkshire terrier, which he treats like a child, has this spice-inspired name.

What is Cinnamon?

500

For Christmas, Penny gifts Sheldon a napkin autographed by this Star Trek legend.

Who is Leonard Nimoy?