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Colonel Richard Williams is a United States' Air Force Officer and engineer who is interested in the navigation/guidance system the guys have developed for the U.S. Air Force. 

Series overview

Season 10

In "The Conjugal Conjecture", the Colonel showed up at Howard's door and Raj lied that he wasn't there. Howard then calls him up and they agree to a meeting at Caltech, but the Colonel won't discuss what he wants.  

In "The Military Miniaturization", the guys meet with the Colonel. He won't tell them what their guidance system will be used for because it's "none of their business". Sheldon tells him that the project of making the guidance system smaller can be done in two months.  

In "The Dependence Transcendence", the guys are worried about meeting their two-month deadline to finish their project and go to visit the Colonel. After a brief moment of tension, he says that he is fine with two years since they are not the first government contractor to not make their deadline.

In "The Locomotion Reverberation", Leonard and Howard have told and shown him that they've completed the gyroscope he wanted from them. Unfortunately, the colonel sees the theory Sheldon created for a smaller one, he wants them to make that one. Despite the fact that Howard and Leonard pointed out that it was only a theory and they can't do it, the colonel hears their pleas, but ignores them and insists that they make the smaller one Sheldon hypothesized, much to their chagrin.

In "The Gyroscopic Collapse", after cleaning out the classified lab of all the contents, Leonard, Howard and Sheldon skyped with the Colonel inquiring why everything was gone. Of course he would not tell them anything, except to confirm that is was he that removed everything. The guys were devastated, Sheldon taking it particularly hard.

Season 11

In "The Tesla Recoil", he confirms to Leonard and Howard that Sheldon is working on a new communications system that is based on their previous gyroscope project.



  • Like Howard, Colonel Williams is a MIT educated engineer.
  • He initially thought the Death Star was from Star Trek until Sheldon corrected him.
  • In "The Locomotion Reverberation", Colonel Williams is shown to be a very stubborn man, as he forces Leonard and Howard to follow through with Sheldon's theory for a smaller gyroscope, in spite of the fact that they already designed the one he had wanted, they don't want to do so, and that making a smaller gyroscope is nearly impossible.
  • In "The Gyroscopic Collapse", it is shown how ungrateful he can really be, as he took the guys project from them without even consulting them.
  • While it has never been mentioned that Colonel Williams is married, he obviously is, as he is seen wearing a ring.



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The Big Bang Theory Characters, Cast & Crew
Characters Main Leonard Hofstadter  ‧  Sheldon Cooper  ‧  Penny  ‧  Howard Wolowitz  ‧  Rajesh Koothrappali  ‧  Amy Farrah Fowler  ‧  Bernadette Rostenkowski-Wolowitz  ‧  Stuart Bloom  ‧  Emily Sweeney (formerly)  ‧  Leslie Winkle (formerly)  ‧  The Social Group
Recurring/Minor Debbie Wolowitz  ‧  Barry Kripke  ‧  Priya Koothrappali  ‧  Dr. V. M. Koothrappali  ‧  Mrs. Koothrappali  ‧  Stephanie Barnett  ‧  Lucy  ‧  Mary Cooper  ‧  Zack Johnson  ‧  Beverly Hofstadter  ‧  Mike Rostenkowski  ‧  Alex Jensen  ‧  Professor Proton  ‧  Missy Cooper  ‧  Ramona Nowitzki  ‧  Dan  ‧  Josh Wolowitz  ‧  Dennis Kim  ‧  Althea Davis  ‧  Jeanie  ‧  Cinnamon  ‧  Mrs. Rostenkowski  ‧  Wyatt  ‧  Claire  ‧  Kurt  ‧  Eric Gablehauser  ‧  Dave Gibbs  ‧  Dimitri  ‧  Alfred Hofstadter   ‧  Meemaw  ‧  Jimmy Speckerman  ‧  Susan  ‧  Randall  ‧  Bert Kibbler  ‧  President Siebert  ‧  Janine Davis  ‧  Colonel Richard Williams  ‧  Halley Wolowitz  ‧  Neil Michael Wolowitz  ‧  Denise  ‧  George Cooper Jr.   ‧  Larry Fowler  ‧  Anu  ‧  George Cooper Sr.  ‧  Marissa
Cast Regulars Johnny Galecki  ‧  Jim Parsons  ‧  Kaley Cuoco  ‧  Simon Helberg  ‧  Kunal Nayyar  ‧  Mayim Bialik  ‧  Melissa Rauch  ‧  Kevin Sussman  ‧  Laura Spencer  ‧  Sara Gilbert  ‧ 
Recurring/Minor Christine Baranski  ‧  Aarti Mann  ‧  John Ross Bowie  ‧  Casey Sander  ‧  Stephen Merchant  ‧  Sara Rue  ‧  Kara Luiz  ‧  Brian Thomas Smith  ‧  Margo Harshman  ‧  Alessandra Torresani  ‧  Matt Bennett  ‧  Keith Carradine  ‧  Laurie Metcalf  ‧  Judd Hirsch  ‧  Carol Ann Susi  ‧  Meagen Fay  ‧  Brian George  ‧  Alice Amter  ‧  Courtney Henggeler  ‧  June Squibb  ‧  Katey Sagal  ‧  Jack McBrayer  ‧  Dean Norris  ‧  Brian Posehn  ‧  Mark Harelik  ‧  Joshua Malina  ‧  Brian Patrick Wade  ‧  Kate Micucci  ‧  Regina King  ‧  Jerry O'Connell
As Selves Wil Wheaton  ‧  Mike Massimino  ‧  Stephen Hawking  ‧  Kip Thorne  ‧ Katee Sackhoff  ‧ Steve Wozniak  ‧ Buzz Aldrin  ‧ Summer Glau  ‧ James Earl Jones  ‧ Carrie Fisher  ‧  Brent Spiner  ‧ Howie Mandel  ‧ Bill Nye  ‧ George Smoot  ‧ George Takei  ‧ LeVar Burton  ‧ Neil deGrasse Tyson  ‧ Brian Greene  ‧ Charlie Sheen  ‧ Stan Lee  ‧ Adam West  ‧  Mark Hamill  ‧ Kevin Smith  ‧  William Shatner  ‧  Joe Manganiello  ‧  Kareem Abdul-Jabbar  ‧  Sarah Michelle Gellar
Crew Writers Chuck Lorre * (Creator)  ‧  Bill Prady * (Creator)  ‧  Steven Molaro *  ‧  Steve Holland *  ‧  Maria Ferrari *  ‧  Jim Reynolds *  ‧  Eric Kaplan *  ‧  Anthony Del Broccolo  ‧  Lee Aronsohn *  ‧  Dave Goetsch *  ‧  Tara Hernandez  ‧  Richard Rosenstock *
Directors Mark Cendrowski  ‧  Peter Chakos * (mainly as Editor)  ‧  Anthony Rich  ‧  James Burrows
Science consultant : David Saltzberg Director of photography : Steven V. Silver
Costume designer : Mary T. Quigley * Unit production manager : Kelly-Anne Lee *
Theme composer / performer : Barenaked Ladies Chuck Lorre Productions
also as Producer The Big Bang Theory : Full cast & crew on IMDb