The Big Bang Theory Season 9

Synopsis

Our two genius roommates, Leonard and Sheldon, and their friends are back once again (smarter, but no wiser). Last season, Sheldon went soul-searching (on a train, of course) and was prepared to make some substantial revisions on his Relationship Agreement with Amy, when everything changed. Leonard, meanwhile, was off to Vegas with Penny to finally tie the knot in the season finale. Howard finds himself alone with Bernadette after the sudden passing of his mother; while Raj is not only talking to women – he’s getting exclusive with Emily. Together, they will all learn that life is far more complicated outside of the lab as love and friendship never produce predictable results!

Main Cast

Johnny Galecki

Leonard Hofstadter

Age : 48 | Popularity : 13%

Jim Parsons

Sheldon Cooper

Age : 51 | Popularity : 18%

Kaley Cuoco

Penny

Age : 38 | Popularity : 57%

Simon Helberg

Howard Wolowitz

Age : 43 | Popularity : 13%

Kunal Nayyar

Rajesh Koothrappali

Age : 42 | Popularity : 16%

Melissa Rauch

Bernadette Rostenkowski

Age : 43 | Popularity : 18%

Mayim Bialik

Amy Farrah Fowler

Age : 48 | Popularity : 20%

Episodes

Episode 1

21 September 2015 - The Matrimonial Momentum

After driving to Vegas to get married, Penny struggles with Leonard’s confession that he kissed another girl. Also, Sheldon doesn't know how to act after Amy pushes pause on their relationship.

Episode 2

28 September 2015 - The Separation Oscillation

Leonard confronts the woman he kissed on the North Sea in an attempt to set Penny's mind at ease. Also, Sheldon films a special episode of "Fun with Flags" after his breakup with Amy, and Bernadette feels guilty about withholding a secret from Penny.

Episode 3

05 October 2015 - The Bachelor Party Corrosion

The guys' science skills are put to the test when they get a flat tire during Leonard's bachelor party weekend in Mexico. Also, the girls force Penny to finally tell her family that she eloped with Leonard.

Episode 4

12 October 2015 - The 2003 Approximation

Sheldon learns of an impending change in his living arrangements and decides to revert back to 2003, a simpler time before he met Leonard and Penny. Also, Howard and Raj form a band to play at the Comic Book Store.

Episode 5

19 October 2015 - The Perspiration Implementation

The guys take a fencing lesson from Barry Kripke and Sheldon finds himself in an awkward position when Kripke expresses interest in Amy. Also, when Stuart struggles to get female customers at the Comic Book Store, Penny, Amy and Bernadette come by to help him out.

Episode 6

26 October 2015 - The Helium Insufficiency

In the midst of a nation-wide helium shortage, Sheldon and Leonard take desperate measures to get the supplies they need. Also, Penny and Bernadette download a dating app on Amy's phone to try and find her a new man.

Episode 7

05 November 2015 - The Spock Resonance

Wil Wheaton interviews Sheldon for a Star Trek documentary where he reveals the ring and his plan to propose to Amy. Bernadette wants to start renovating the house and the topic of starting a family together with Howard is brought up.

Episode 8

12 November 2015 - The Mystery Date Observation

Sheldon, Wolowitz and Koothrappali post an online advertisement to find Sheldon a new girlfriend. Also, when Amy is coy with details about a guy she is dating, Penny and Bernadette decide to spy on her.

Episode 9

19 November 2015 - The Platonic Permutation

Sheldon and Amy try hanging out as friends when they spend Thanksgiving together at the aquarium. Also, Wolowitz reluctantly agrees to volunteer at the soup kitchen with Bernadette, Raj and Emily, and Penny discovers that Leonard knows more about her than she thought.

Episode 10

10 December 2015 - The Earworm Reverberation

Sheldon has a revelation when he realizes why a song was stuck in his head. Also, Amy invites Dave over for dinner despite their previously awkward date, and Wolowitz and Koothrappali become obsessed with a fan of their band, "Footprints on the Moon".

Episode 11

17 December 2015 - The Opening Night Excitation

After more than five years of dating, Sheldon and Amy spend their first night together. Also, Leonard, Wolowitz, and Koothrappali must decide who will take their extra Star Wars movie ticket.

Episode 12

07 January 2016 - The Sales Call Sublimation

Penny gets more than she bargained for when Leonard agrees to meet with a psychiatrist on her behalf. Also, Sheldon and Koothrappali collaborate on an astronomical discovery, and Wolowitz and Bernadette can't believe what they are feeling after Stuart moves out.

Episode 13

14 January 2016 - The Empathy Optimization

After having to deal with a sick Sheldon, Leonard, Penny and the gang try to treat themselves to a Sheldon-free weekend.

Episode 14

04 February 2016 - The Meemaw Materialization

Meemaw meets Amy, but it isn't all roses. Meemaw seems to have an axe to grind with her. Sheldon comes to Amy's defense, but not before Meemaw lets a little secret of his slip.

Episode 15

11 February 2016 - The Valentino Submergence

Sheldon and Amy host a live Valentine's Day episode of Fun with Flags, Leonard and Penny grapple with getting older, Howard and Bernadette find a surprise in their hot tub and Raj is torn between Emily and the cute girl he met at the Comic Bookstore.

Episode 16

18 February 2016 - The Positive Negative Reaction

When the gang finds out about Bernadette’s pregnancy, they celebrate by singing karaoke. Also, Bernadette is concerned when Wolowitz freaks out over her pregnancy announcement, and Wolowitz is convinced he must make more money to provide for the baby.

Episode 17

25 February 2016 - The Celebration Experimentation

After more than nine years together, the gang finally celebrates Sheldon’s birthday, surprising him with a special guest.

Episode 18

10 March 2016 - The Application Deterioration

Leonard, Sheldon, and Wolowitz run into problems when they file for a patent for their infinite persistence gyroscope. Also, Penny, Amy and Bernadette give Koothrappali dating advice when Emily reaches out to him after their breakup.

Episode 19

31 March 2016 - The Solder Excursion Diversion

Amy is shocked at a revelation from Sheldon after she buys him a new laptop. Also, Koothrappali sells out Leonard and Wolowitz after they lie to their wives in order to attend an early screening of a movie.

Episode 20

07 April 2016 - The Big Bear Precipitation

Sheldon spills a secret of Leonard’s when the two take a weekend cabin trip with Penny and Amy. Also, when Koothrappali goes overboard with pregnancy gifts, Wolowitz and Bernadette must draw the line.

Episode 21

21 April 2016 - The Viewing Party Combustion

Everyone must choose sides when a small argument between Leonard and Sheldon erupts into a heated fight during a group get-together.

Episode 22

28 April 2016 - The Fermentation Bifurcation

The gang goes to a wine bar and runs into Penny’s old boyfriend, Zack. Also, Bernadette gets stuck spending the evening with Sheldon when she can’t go wine tasting with the group, and things don’t go as planned when Koothrappali introduces his new girlfriend, Claire.

Episode 23

05 May 2016 - The Line Substitution Solution

Sheldon hires Stuart to spend the day with Amy when he’d rather go to a movie screening. Also, Leonard’s mother, Beverly, comes to town and Penny struggles to make a connection with her.

Episode 24

12 May 2016 - The Convergence Convergence

Chaos ensues when Leonard’s recently divorced parents, Alfred and Beverly, and Sheldon’s devoutly religious mother, Mary, come to town. Also, Wolowitz and Koothrappali think the government is out to get them when they are contacted about their guidance system.

Crew

Department	Role	Name
Production	Producer	Anthony Del Broccolo Robinson Green Kristy Cecil
	Co-Producer	Tara Hernandez Jeremy Howe Ryan Berdan Justin D. Hetzel Mary T. Quigley
	Co-Executive Producer	Saladin K. Patterson Peter Chakos
	Associate Producer	Charlie Back
	Unit Production Manager	Robinson Green
	Casting Associate	Tara Treacy
	Coordinating Producer	Suzanne McCormack
	Executive Producer	Steven Molaro Bill Prady Chuck Lorre
	Casting	Nikki Valko Ken Miller
Costume & Make-Up	Hair Department Head	Faye Woods
	Key Hair Stylist	Sylvia Surdu
	Key Makeup Artist	Linda Cowan
	Makeup Department Head	Vikki McCarter
	Costume Design	Mary T. Quigley
Art	Art Direction	Francoise Cherry-Cohen
	Production Design	John Shaffner
	Set Decoration	Ann Shea
Lighting	Gaffer	John Greene
Crew	Property Master	Scott L. London
	Scientific Consultant	David Saltzberg
Sound	Sound Re-Recording Mixer	Charlie McDaniel Bob La Masney
	Production Sound Mixer	Bruce Peters
	Theme Song Performance	Barenaked Ladies
Editing	Editor	Peter Chakos
Camera	Director of Photography	Steven V. Silver
Directing	Script Supervisor	Julie Fleischer
Department	Role	Name

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