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Dennis Kim is a physics prodigy from North Korea whom Dr. Eric Gablehauser hopes to recruit into his department's Ph.D. program, in the episode "The Jerusalem Duality". A highly sought after doctoral candidate, he was the valedictorian at Stanford University, graduating within a year-and-a-half, and the youngest recipient of the prestigious Stevenson Award (probably based on the real-life Stevenson Prize). Dennis lost a year in starting graduate work while his family tunneled out of North Korea, though his grandfather remained behind. As incentives to lure him, Dr. Gablehauser proffers that he may use up to 20% of the grant money he attracts to smuggle his grandfather out of Pyongyang and enlists Sheldon and Leonard to provide a tour of the department to show him why Caltech has the best physics research facility in the USA.

Dennis Kim notices Sheldon's Stevenson Award.

Dennis and Sheldon have an antagonistic relationship when the former intellectually surpasses the latter. Believing the string theory research (i.e., Sheldon's research) conducted at Caltech to be a dead end, Dennis insults Sheldon by insisting that he will eventually come to the same conclusion and inputs that the whole landscape of false vacuums in string theory could be as large as ten to the five-hundredth power. Dennis insults Leonard's English, before Sheldon halts the tour by returning to his office, Dennis makes a keen observation of Sheldon's work on quantum loop corrections scribbled on one of his whiteboards and finds it startling that he hasn't considered a Lorentz invariant field theory approach. While Sheldon demands that he leave, Dennis Kim excitedly takes note of the Stevenson Award framed near the door inside, but is quick to discover that Sheldon was only formerly the youngest recipient at fourteen-and-a-half.

Losing faith in his own research, Sheldon begins searching for a different field of study to the progressively increasing frustration of his friends, prompting the gang to come up with a solution to derail Dennis Kim's work. The gang make arrangements so Dennis can meet girls his age in an attempt to distract him from his intellectual pursuits. The plan succeeds and Dennis is seen in the park kissing a girl Emma and drinking, presumably no longer an intellectual threat to Sheldon.

Dennis's defeat


  • Dennis Kim has no known relationship to Joyce Kim. Kim is a common Korean family name.
  • He appears to have a fondness for chocolate milk.
  • Dennis and Sheldon are currently the only child prodigies who have appeared on the show.
  • The name Dennis Kim also appears in "Star Trek Voyager" (S07E04) as the brother of Harry Kim.
  • Sheldon is usually deal with rivals who are super genius like him and Paige Swanson.


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The Big Bang Theory Characters, Cast & Crew
Characters Main Leonard Hofstadter  ‧  Sheldon Cooper  ‧  Penny Hofstadter  ‧  Howard Wolowitz  ‧  Rajesh Koothrappali  ‧  Amy Farrah Fowler  ‧  Bernadette Rostenkowski-Wolowitz  ‧  Stuart Bloom  ‧ The Social Group  ‧ Emily Sweeney  ‧  Leslie Winkle
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