The sketch was written by Mikey Day, who plays Butt-Head above, and Streeter Seidell. A pair who—according to cast member and host of the sketch, Heidi Gardner—have been wanting to do this for a while.
“It was a sketch that had been put up at table reads and rehearsals for about five years prior to this,” Gardner told Vulture in a new interview. “Previously, I was in the sketch but as an audience member. I can’t remember the other castings of it. It never made it to a dress rehearsal.”
This week though, it didn’t just make it to dress rehearsal, it made it to air. “Every so often, because of timing or the stage it’s in, a sketch might be cut on a Friday night as opposed to a Saturday. That’s what happened the time before,” Gardner continued. “I had never seen the costumes. It was a sketch that Mikey Day and Streeter Seidell kept on pitching, like, ‘Before the end of our time here, we have to do the Beavis and Butt-Head sketch.’ It was their white whale; they really wanted to do it. Knowing Ryan is always so down for fun and playful things, my guess is they thought he would be into it.”
Would have been far funnier if they hadn’t continually broken character.