At the sound of the beep, turn the page. No wait; just click the link to find out more about the Lunar Invaders.
Now for the fun ones:
Narrated by Kathy Mullen famous for being Mokey Fraggle.
Jerry Nelson as Green Lantern and Yuri Pudovkin. Jerry Nelson is awesome for being in like everything. Creating Count Von Count and being Floyd.
Richard Hunt as The Flash and Han Chin. Hunt is probably best known for being Scooter.
Michael Kingsbury Frith as The Batman. He is an interesting choice because his long list of Muppet accomplishments are for art direction and design consultant.
Frederick R. Newman as Red Tornado and an Alien was a one time writer for Muppet Magazine and known mostly as a voice actor.