Muppet voices-
Anything from Jim... and yes, I can distinguish the characteristics and pitches/volume of Waldorf, Dr. Teeth, Rowlf and the Newsman.
Jerry N.- Robin, Floyd, Uncle Deadly, Pops, Lew Zealand, Crazy Harry (on a good day) Count, Herry, Gobo, and Pa Gorg... It's tough doing the Trash Heap; I can't do Gobo's voice AND a harsh German accent at the same time lol.
Frank O.- Everyone except Piggy... I just can't do it lol. The closest I can get is Marvin Suggs, and that's only when I'm singing "Witch Doctor" out loud.
Dave G.- Bunsen, Zoot, Beau, Boober, Digit
Richard H.- Scooter, Janice, Statler, Wizard of FG, Mudwell
Kevin C.- Clifford, Leon, Hoots
Non-Muppet voices:
Regis Philbin
Will Ferrell's Harry Caray
Johnny Carson
Christopher Walken (I'm workin on it still)
Gary Busey
Darrell Hammond's Sean Connery, Phil Donahue, John Travolta, Richard Dreyfuss, Dan Rather, Ted Koppel.
Family Guy: Peter, Chris, Joe Swanson, Cleveland Brown, Brian, Adam West, Tom Tucker, and Mort Goldman. (No, I can't do Stewie)
And spcglider, I todally understand where you're coming from... I've done some voice work myself, and I love doing voices when asked. I don't like prompting challenges either... way to go on those voices, man.