Oh the announcer was Matt all right. Plus Joey was the other one. Yeah, the announcer was actually two identical puppets when they popped up in different places. Leslie played the quick cameo of the number 6 at the end, even though we didn't hear the 6 speak, plus Carmen played the fox.
Know how I know?
Well, my wife and I were there in Hooper's Store watching them film it! (My wife runs Caroll's official website). We saw everything but the "Winnebago" joke being filmed at the very beginning. Now that it has, at last, aired (they filmed it on May 19, 2011) I can talk about it. To anyone interested, I can tell about what happened that day. One thing's for certain, there's nothing that will prepare you for how wonderful it is to be on Sesame Street. Oh, I can't begin to tell you how much fun it was!
http://carollspinney.net/docs/photos.html
On the same day, Marty went around with his camcorder and did a short film on Caroll for his site "Sesame Family Robinson". You can see "Tex" from the episode in the beginning of the clip. I make a very short cameo at the end (the guy in the black fedora and brown shirt). So, for those of you who don't believe I was there...well, there I am!
http://www.sesamestreet.org/parents/blog/-/blogs/carol-spinney-prepares-his-script
So, to any Muppeteers, Leela, or any behind the scenes people reading this, my wife and I had a blast. It was one of the best days ever!