The Big Bang Theory season 10

The tenth season of the American television sitcom The Big Bang Theory aired on CBS from September 19, 2016 to May 11, 2017. The series returned to its regular Thursday night time slot on October 27, 2016 after Thursday Night Football on CBS ended.

On March 12, 2014, The Big Bang Theory was renewed for an additional three years, extending it through the 2016–17 television season for a total of ten seasons.

Production
Like the previous two seasons, the first five episodes of the tenth season aired on a different night due to CBS acquiring the rights to Thursday Night Football games. In May 2016, CBS announced at its annual upfront presentation that the series would begin its tenth season on Mondays, before returning to the Thursday slot once the football games ended.

Filming for the tenth season began on August 16, 2016, according to posts on Instagram and Twitter by several of the cast members including Kaley Cuoco and Mayim Bialik.

Several castings for the tenth season were announced before the season began airing. Variety announced on July 22, 2016, that Katey Sagal and Jack McBrayer had been cast as Penny's mother and brother, respectively. Information about the characters was that Sagal would play Susan, who was described as stressed out and neurotic from a life with her troubled son. McBrayer would play Randall, a cheerful former drug dealer and ex-con. Entertainment Weekly reported on August 10, 2016, a week before filming began, that Dean Norris would have a multi-episode arc in the tenth season, and would be playing Colonel Williams, a tough officer from the Air Force Research Laboratory, who is interested in the men's quantum gyroscope for military applications. On November 9, 2016, TVLine reported that Christopher Lloyd had been cast as Theodore for the season's December 1 episode.

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

 * Christine Baranski as Dr. Beverly Hofstadter
 * Laurie Metcalf as Mary Cooper
 * Dean Norris as Colonel Richard Williams
 * Brian George as Dr. V.M. Koothrappali
 * Brian Posehn as Dr. "Bert" Bertram Kibbler
 * John Ross Bowie as Dr. Barry Kripke
 * Pamela Adlon as Halley Wolowitz (voice only)
 * Brian Thomas Smith as Zack Johnson

Guest cast

 * Judd Hirsch as Alfred Hofstadter
 * Keith Carradine as Wyatt
 * Katey Sagal as Susan
 * Jack McBrayer as Randall
 * Josh Zuckerman as Marty
 * Laura Spencer as Emily Sweeney
 * Brandon Jones as The Flash
 * Maria Canals-Barrera as Issabella Maria Concepcion
 * Christopher Lloyd as Theodore
 * Kate Micucci as Lucy
 * Alessandra Torresani as Claire
 * Katie Leclerc as Emily
 * April Bowlby as Rebecca
 * Riki Lindhome as Ramona Nowitzki