It's been less than a week since his character, Glenn, was killed off on The Walking Dead but Steven Yeun revealed on Thursday, October 27, that he already has a new job — as Conan O'Brien's stand-in.

Yeun — whose character met a grisly end at the hands of Negan (Jeffrey Dean Morgan) on the AMC show's Sunday, October 23, episode — said during an interview on Conan on Thursday that after seven years on The Walking Dead, he had quickly scored a new gig, filling in for the comedian during rehearsals.

"I don't come in for rehearsals, as you can tell," O'Brien explained to the audience. "Andy [Richter] and I are flown in by helicopter seconds before the show begins."

He then showed a clip of Yeun, 32, at rehearsal.

"Look at me, I'm Conan!" the actor laughed as he reached across the host's desk to grab a coffee mug before pretending to interview a guest. "Joke. Interview. Talking to you. Listening. Joke. Interview. Band. Cut to," he said before exclaiming, "It's easy!"

Then he began playing guitar (in a nod to the former Tonight Show host's love of music).

The next shot found Yeun with tears streaming down his face as he stared at his reflection in a mirror. "Today's Thursday. You are going to be funny," he said to himself in a pep talk.

He then used the mirror to see how high he could brush his hair as he tried to replicate O'Brien's trademark 'do.

Yeun — who memorably stripped naked with O'Brien during a visit to a Korean spa in 2015 — finally gave up and donned a red wig.

Watch the video above to see who weighs in on his new look.

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