Since today (or yesterday or when ever, depending on when you read this) is Jerry's Birthday, I'm going to rehash the Richard Hunt question.
For Me, I'd say, Sherlock Hemlock, Mumford, Herry, Biff, and Count on Sesame Street, Crazy Harry, Lew Zeland, Sgt. Floyd Pepper, Louis Kazzager, STatler (techincally correct, he originated the role, and he continues it) on Muppet Show, and Gobo on Fraggle Rock. I can't say Scred, though since I haven't seen any SNL Muppet sketches.
For Me, I'd say, Sherlock Hemlock, Mumford, Herry, Biff, and Count on Sesame Street, Crazy Harry, Lew Zeland, Sgt. Floyd Pepper, Louis Kazzager, STatler (techincally correct, he originated the role, and he continues it) on Muppet Show, and Gobo on Fraggle Rock. I can't say Scred, though since I haven't seen any SNL Muppet sketches.