Yeah, that's the funny thing about Brian. Everyone expected he'd sound just like his father. But in fact, he seems to take after the Nebel side of the family. I bet he sounds just like Jane's father at that age.
Brian flat-out said in a TV Guide interview that he didn't want to do Kermit because it just seemed too weird. I would guess that applied to the other characters as well, but after so many others had taken up Jim's reins, I guess Brian decided to give it a shot with the Newsman. I loved the performance and was hoping to see him again in VMMCM. Hopefully in future projects, still played by Brian.
Bill's Rowlf was dead-on at TMS Live; it was only in the Weezer video that he sounded slightly off and that, as someone suggested, was probably because he was trying to improvize dialogue at the same time. Also, they probably wouldn't do hardly any retakes for a quickie special like that. I'd like to see another scripted, well-rehearsed return for Bill's Rowlf. And from what little we've heard of John Kennedy's Dr. Teeth, I'd like him to keep that character. (John also does a decent Kermit, BTW. At MF, when Steve had Young Kermit on his arm, they gave older Kermit to John for a side-by-side comparison, and John improvised a few lines as Kermit. Not that he should take over the character, but it was fun to hear.)
If Steve does such a great Link, why aren't they using him more? His presence is sorely missed. Yet they even went out of their way to introduce an "imitation" Link character for Bay of Pigswatch, so that no one would have to do the voice. (Not "imitation" as in voice, but as in "same basic character, different name.")