Conan O'Brien can be rightly called the funniest "Walker" on planet Earth. On his show "Conan," he invited the entire cast of "The Walking Dead" for a special episode. The latest video of Team Coco showcased Conan O'Brian in full walker makeup. Greg Nicotero, special effects maestro for "The Walking Dead" worked on his makeup.

The entire cast of "The Walking Dead" - Andrew Lincoln (Rick Grimes), Norman Reedus (Daryl Dixon), Steven Yeun (Glen Rhee), Danai Gurira (Michonne), Lauren Cohen (Maggie Greene) and Melissa McBride (Carol Peletier) is on "Conan."

The video with Conan as walker is nothing but hilarious. The special "Walking Dead" video opens with focus on a walker's eyes. Slowly, the camera reveals the identity of the walker. He is Conan O'Brien!

Walker Conan is walking in the woods. He is looking for directions but unable to locate the place where he should be.

The walker Conan is kind of tech savvy as he flips out his smartphone and consults the map. After looking into the map, he moves, yes like a walker. Viewers also see a car and the windshield reads, "Sorry Sophia, you're on your own."

In the next scene, Conan sees Daryl's arrow and he has a strange expression on his face. Daryl's crossbow is one of the meanest weapons to slay walkers.

Check out the hilarious video, here. Norman Reedus loves to share his life via photographs, you can check out this Norman-Conan selfie.

He also posted pictures of the crowd at the "Conan" show. In one of the pictures, Norman kind of photobombed cum clicked Carol while she was getting ready for the interview.

"The Walking Dead" season 4 episode 9 titled "After" premieres this Sunday, February 9, 2014 at 9 p.m. on AMC.