The Big Bang Theory season 11

The eleventh season of the American television sitcom The Big Bang Theory aired on CBS from September 25, 2017 to May 10, 2018. The series returned to its regular Thursday night time slot on November 2, 2017, after Thursday Night Football on CBS ended.

In March 2017, CBS renewed the series for two additional seasons, bringing its total to twelve and securing that the series would run through the 2018–19 television season.

Production
Like the previous three seasons, the first five episodes aired on Mondays due to CBS' contractual rights to air the Thursday Night Football games. After Thursday Night Football ended, the series returned to a Thursday schedule starting on November 2, 2017. Filming for the eleventh season began on August 15, 2017; it was also announced with the taping report that the premiere for the eleventh season would be titled "The Proposal Proposal". Before the season premiered, five episodes were filmed from August 15 to September 19, 2017.

According to TV Guide, Steve Holland announced on September 22, 2017, that both Bob Newhart and Wil Wheaton would return this season after their absences during Season 10.

Main cast

 * Johnny Galecki as Dr. Leonard Hofstadter
 * Jim Parsons as Dr. Sheldon Cooper
 * Kaley Cuoco as Penny
 * Simon Helberg as Howard Wolowitz
 * Kunal Nayyar as Dr. Rajesh "Raj" Koothrappali
 * Mayim Bialik as Dr. Amy Farrah Fowler
 * Melissa Rauch as Dr. Bernadette Rostenkowski-Wolowitz
 * Kevin Sussman as Stuart Bloom

Recurring cast

 * Laurie Metcalf as Mary Cooper
 * Christine Baranski as Dr. Beverly Hofstadter
 * Stephen Hawking as himself
 * Regina King as Janine Davis
 * Brian Posehn as Dr. "Bert" Bertram Kibbler
 * Wil Wheaton as himself
 * Bob Newhart as Dr. Arthur Jeffries/Professor Proton
 * John Ross Bowie as Dr. Barry Kripke
 * Dean Norris as Colonel Richard Williams
 * Brian Thomas Smith as Zack Johnson
 * Brian George as Dr. V. M. Koothrappali
 * Pamela Adlon as Halley Wolowitz (voice only)
 * Joshua Malina as President Siebert
 * Lauren Lapkus as Denise

Guest cast

 * Riki Lindhome as Ramona Nowitzki
 * Ira Flatow as himself
 * Swati Kapila as Ruchi
 * Beth Behrs as Nell
 * Walton Goggins as Oliver
 * Bill Gates as himself
 * Megan McGown as Cynthia
 * Peter MacNicol as Dr. Robert Wolcott
 * Neil Gaiman as himself
 * Jerry O'Connell as George Cooper Jr.
 * Courtney Henggeler as Missy Cooper
 * Teller as Larry Fowler
 * Kathy Bates as Mrs. Fowler
 * Mark Hamill as himself