Season 12 poster

Season 12

(2018)

Overview

Best friends and brilliant physicists Leonard Hofstadter and Sheldon Cooper are geniuses in the lab but socially challenge outside of it. Despite this, Leonard married his beautiful, street-smart neighbour, Penny. And Sheldon, after a long courtship, wed successful neurobiologist Amy. And while aerospace engineer Howard and his adorable microbiologist wife, Bernadette, explore the predicament of being married with two kids, astrophysicist Raj considers a traditional arranged marriage. As the su…

Cast

Johnny Galecki as Leonard Hofstadter
Johnny Galecki

as Leonard Hofstadter

Jim Parsons as Sheldon Cooper
Jim Parsons

as Sheldon Cooper

Kaley Cuoco as Penny
Kaley Cuoco

as Penny

Simon Helberg as Howard Wolowitz
Simon Helberg

as Howard Wolowitz

Kunal Nayyar as Rajesh Koothrappali
Kunal Nayyar

as Rajesh Koothrappali

Melissa Rauch as Bernadette Rostenkowski
Melissa Rauch

as Bernadette Rostenkowski

Mayim Bialik as Amy Farrah Fowler
Mayim Bialik

as Amy Farrah Fowler

Episodes

The Conjugal Configuration poster

The Conjugal Configuration 9.9

September 24, 2018

Sheldon and Amy's honeymoon runs aground in New York. Penny and Leonard discover they are uncomfortably similar to Amy'…

The Wedding Gift Wormhole poster

The Wedding Gift Wormhole 7.4

September 27, 2018

Sheldon and Amy drive themselves crazy trying to figure out what 'perfect gift' Leonard and Penny gave them for their w…

The Procreation Calculation poster

The Procreation Calculation 7.0

October 4, 2018

The Wolowitzes' life gets complicated when Stuart starts bringing his new girlfriend home. Also, Penny and Leonard talk…

The Tam Turbulence poster

The Tam Turbulence 7.0

October 11, 2018

When Sheldon won't tell anyone why he's never mentioned his childhood best friend, Leonard takes matters into his own h…

The Planetarium Collision poster

The Planetarium Collision 6.9

October 18, 2018

When Amy doesn’t have time to work on super-asymmetry, Sheldon goes to great lengths to ensure she’s available to work …

The Imitation Perturbation poster

The Imitation Perturbation 7.5

October 25, 2018

When Howard dresses up as Sheldon for Halloween, Sheldon seeks retaliation at Leonard and Penny's Halloween party. Leon…

The Grant Allocation Derivation poster

The Grant Allocation Derivation 7.0

November 1, 2018

Leonard is caught between a rock and a hard place when he's responsible for distributing extra grant money. Bernadette …

The Consummation Deviation poster

The Consummation Deviation 7.0

November 8, 2018

Sheldon tries to bond with Amy's father, but when Howard lures Mr. Fowler away with magic tricks, Sheldon has no choice…

The Citation Negation poster

The Citation Negation 7.2

November 15, 2018

Sheldon and Amy are devastated after learning from a Russian paper that Super Asymmetry has already been theorized and …

The VCR Illumination poster

The VCR Illumination 7.0

December 6, 2018

Sheldon and Amy are still down about their theory being disproven, but a VHS tape from Sheldon’s past inspires him not …

The Paintball Scattering poster

The Paintball Scattering 7.0

January 3, 2019

Penny and Leonard organize a paintball game that results in mayhem when Sheldon is jealous of Amy. Also, Raj catches An…

The Propagation Proposition poster

The Propagation Proposition 6.9

January 10, 2019

Penny runs into her ex-boyfriend, Zack, who invites her and Leonard to a dinner to meet his newlywed wife. After the di…

The Confirmation Polarization poster

The Confirmation Polarization 6.8

January 17, 2019

Sheldon and Amy are thrilled when their super asymmetry theory is proven by two physicists, until they try to kick Amy …

The Meteorite Manifestation poster

The Meteorite Manifestation 6.8

January 31, 2019

Sheldon is thrilled to help Bernadette and Wolowitz navigate bureaucratic paperwork, until he discovers they are breaki…

The Donation Oscillation poster

The Donation Oscillation 6.7

February 7, 2019

Penny tries to seduce an abstaining Leonard to ruin his "donation" for her ex-boyfriend, Zack, and his wife, Marissa. A…

The D & D Vortex poster

The D & D Vortex 7.1

February 21, 2019

The gang finds out Wil Wheaton hosts a celebrity Dungeons and Dragons game involving William Shatner, Joe Manganiello, …

The Conference Valuation poster

The Conference Valuation 6.7

March 7, 2019

When Penny and Bernadette go to San Diego for a pharmaceutical sales convention, Wolowitz is in charge of the kids. Als…

The Laureate Accumulation poster

The Laureate Accumulation 6.9

April 4, 2019

When competitors Pemberton and Campbell charm America on a publicity tour, Sheldon and Amy try to bring Nobel laureates…

The Inspiration Deprivation poster

The Inspiration Deprivation 6.5

April 18, 2019

The concept of what it would mean for women everywhere if Amy were to win a Nobel Prize causes Amy to have a meltdown. …

The Decision Reverberation poster

The Decision Reverberation 6.6

April 25, 2019

Raj is worried people won’t take him seriously in his own field after publishing a paper that suggests he may have disc…

The Plagiarism Schism poster

The Plagiarism Schism 6.9

May 2, 2019

Kripke has proof that Dr. Pemberton plagiarized his thesis in college, and Sheldon and Amy aren't sure if they should t…

The Maternal Conclusion poster

The Maternal Conclusion 7.3

May 9, 2019

Leonard is pleasantly surprised when Beverly comes to visit and she's genuinely kind to him, until he finds out the rea…

The Change Constant / The Stockholm Syndrome poster

The Change Constant / The Stockholm Syndrome 7.8

May 16, 2019

Sheldon and Amy await big news. Meanwhile, Penny and Leonard have some big news of their own. Also, Howard and Bernadet…

Unraveling the Mystery: A Big Bang Farewell poster

Unraveling the Mystery: A Big Bang Farewell 8.1

May 16, 2019

Johnny Galecki and Kaley Cuoco will lead fans on a trip down memory lane, sharing some of the best-kept backstage secre…