![TIL Steven Yeun, Glenn from "The Walking Dead," also played Sheldon's previous roommate Sebastian in "The Big Bang Theory." : r/geek TIL Steven Yeun, Glenn from "The Walking Dead," also played Sheldon's previous roommate Sebastian in "The Big Bang Theory." : r/geek](https://external-preview.redd.it/n6AICaN0ncS26fvdm6_nxCccFDfFgnoW1AKLMyGBhd0.jpg?auto=webp&s=dbbe8ea9d061aafc7e6d9f36779ef436205ea963)
TIL Steven Yeun, Glenn from "The Walking Dead," also played Sheldon's previous roommate Sebastian in "The Big Bang Theory." : r/geek
![Other roles of the Actors in The Walking Dead... The Governor was in Doctor Who. | The walking dead, Walking dead funny, Steven yeun Other roles of the Actors in The Walking Dead... The Governor was in Doctor Who. | The walking dead, Walking dead funny, Steven yeun](https://i.pinimg.com/736x/f9/71/a6/f971a65fd8f62618fd742320a5909d4a--the-big-bang-theory-bangs.jpg)
Other roles of the Actors in The Walking Dead... The Governor was in Doctor Who. | The walking dead, Walking dead funny, Steven yeun
![Steven Yeun | Before They Were on The Walking Dead, Here's What Your Favorite Zombie Slayers Starred In | POPSUGAR Entertainment Steven Yeun | Before They Were on The Walking Dead, Here's What Your Favorite Zombie Slayers Starred In | POPSUGAR Entertainment](https://media1.popsugar-assets.com/files/thumbor/G1C2ap9_G0wdfv3EBFEMyZujvfI/fit-in/1024x1024/filters:format_auto-!!-:strip_icc-!!-/2016/03/21/932/n/1922283/netimgMume7W/i/Steven-Yeun.jpg)
Steven Yeun | Before They Were on The Walking Dead, Here's What Your Favorite Zombie Slayers Starred In | POPSUGAR Entertainment
![Big Bang Theory: Young Sheldon sheds light on lingering question about his first roommate | The Independent Big Bang Theory: Young Sheldon sheds light on lingering question about his first roommate | The Independent](https://static.independent.co.uk/2021/11/02/10/big%20bang%20theory%20sebastian%20%281%29.jpg?quality=75&width=1200&auto=webp)
Big Bang Theory: Young Sheldon sheds light on lingering question about his first roommate | The Independent
![Big Bang Theory: Who are the biggest guest stars to ever appear in the series? | TV & Radio | Showbiz & TV | Express.co.uk Big Bang Theory: Who are the biggest guest stars to ever appear in the series? | TV & Radio | Showbiz & TV | Express.co.uk](https://cdn.images.express.co.uk/img/dynamic/20/590x/secondary/Big-Bang-Theory-Steven-Yeun-2074809.jpg?r=1570802438746)
Big Bang Theory: Who are the biggest guest stars to ever appear in the series? | TV & Radio | Showbiz & TV | Express.co.uk
![Burning actor Steven Yeun interview: 'I feel like a man with no country' | The Independent | The Independent Burning actor Steven Yeun interview: 'I feel like a man with no country' | The Independent | The Independent](https://static.independent.co.uk/s3fs-public/thumbnails/image/2019/01/31/13/steven-yeun.jpg?quality=75&width=1200&auto=webp)
Burning actor Steven Yeun interview: 'I feel like a man with no country' | The Independent | The Independent
![The Big Love Theory: Off-Screen Partners of The Cast of The Big Bang Theory – Page 46 – Herald Weekly The Big Love Theory: Off-Screen Partners of The Cast of The Big Bang Theory – Page 46 – Herald Weekly](https://www.heraldweekly.com/wp-content/uploads/2021/10/88843/GettyImages-1131663299-The-Cast-of-The-Big-Bang-Theory-Real-Life-Relationships-Steven-Yeun-and-Joana-Pak.jpg.pro-cmg-scaled.jpg)