Steven Yeun

Steven Yeun is a Korean-American actor and voice actor. He is known for his role as Glenn Rhee on AMC's horror drama television series The Walking Dead. Yeun has also appeared in many short and feature films, and has done video game and cartoon voiceovers.

WIKIPEDIA

THE BIG BANG THEORY · S3, E22

The Staircase Implementation

Leonard tells Penny the story of how he met Sheldon for the first time...and what happened to the elevator.
THE TWILIGHT ZONE · S1, E4

A Traveler

On Christmas Eve in Iglaak, Alaska, a mysterious traveler (Steven Yeun) wishes to be pardoned by Captain Lane Pendleton (Greg Kinnear).
DRUNK HISTORY · S2, E7

Hawaii

James Cook "discovers" Hawaii and parties with the natives, Japanese-American Daniel Inouye fights heroically in World War II, and Eddie Aikau becomes one of the world's greatest big wave surfers. Featuring Ken Marino, Jason Mantzoukas and Steven Yeun.
COMEDY BANG! BANG! · S3, E12

Steven Yeun Wears Rolled Up Black Jeans & No Socks

Activist Victor Ramos shamelessly plugs some community program he's heading; Steven Yeun shares his preparations for the inevitable zombie apocalypse; plus, there is compiled footage of Reggie's entire life.
BAJILLION DOLLAR PROPERTIE$ · S3, E4

Disaster Drills

Chelsea, Victoria and Baxter learn emergency protocol, Amir needs client Eric to pass a biology test before the sale and Andrew sells to author Merry Capshaw, who narrates her every thought.