Steve performing other characters

[Muppet Frog]

I can tell the Elvis type Muppet is definitly Steve because he sounded like Kermit doing an Elvis impression.

 

[antsamthompson9]

My guess then would be that was David playing Lil' Fish Dude... some of David's voices surprisingly sound similar to Steve's - didn't anyone besides me thought the way David delivered Peter Crachitt's line "I think he's walked a little slower these past few evenings" sound a LOT like Steve's Kermit?

It was David. I agree, some of David's voices sound similar to Steve's, including Peter Crachitt. He probably should have done Kermit during the Kismet the Toad fiasco.

 

[Muppet Frog]

I agree David would have been a better fill-in instead of Artie.