CalTech physicists, Leonard and Sheldon realize how little they know about the life outside of physics, Star Trek, and comic books when Penny moves in across the hall.
Leonard has a sister and a younger brother (named Michael), both more successful in their fields than he.
78 More TriviaPennyI really love Howard's chest hair.
Bernadette RostenkowskiHoward has chest hair?
272 More QuotesNo, just the one, but it's really long
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Johnny Galecki | Leonard Hofstadter | 87 eps. |
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Kunal Nayyar | Rajesh Koothrappali | 87 eps. |
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Simon Helberg | Howard Wolowitz | 87 eps. |
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Jim Parsons | Sheldon Cooper | 87 eps. |
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Kaley Cuoco | Penny | 85 eps. |
| Carol Ann Susi | Mrs. Wolowitz (voice) | 15 eps. | |
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Melissa Rauch | Bernadette Rostenkowski | 9 eps. |
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Mayim Bialik | Amy Farrah Fowler | 7 eps. |
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Sara Gilbert | Leslie Winkle | 7 eps. |
| Kevin Sussman | Stuart | 6 eps. |
| 1 | Pilot | 09/24/2007 | |
| 2 | The Big Bran Hypothesis | 10/01/2007 | |
| 3 | The Fuzzy Boots Corollary | 10/08/2007 | |
| 4 | The Luminous Fish Effect | 10/15/2007 | |
| 5 | The Hamburger Postulate | 10/22/2007 | |
| 6 | The Middle Earth Paradigm | 10/29/2007 | |
| 7 | The Dumpling Paradox | 11/05/2007 | |
| 8 | The Grasshopper Experiment | 11/12/2007 | |
| 9 | The Cooper-Hofstadter Polarization | 03/17/2008 | |
| 10 | The Loobenfeld Decay | 03/24/2008 | |
| 11 | The Pancake Batter Anomaly | 03/31/2008 | |
| 12 | The Jerusalem Duality | 04/14/2008 | |
| 13 | The Bat Jar Conjecture | 04/21/2008 | |
| 14 | The Nerdvana Annihilation | 04/28/2008 | |
| 15 | The Pork Chop Indeterminacy | 05/05/2008 | |
| 16 | The Peanut Reaction | 05/12/2008 | |
| 17 | The Tangerine Factor | 05/19/2008 |