Zach Galligan (the star of Gremlins!), Deborah Foreman (Valley Girl!), and David Warner (from the original Tron! And lots of other things!). In the second one, they get random crazy guests, such as Marina Sirtis from Star Trek:TNG and Martin Kemp, whose older brother was in Spandau Ballet, but they sadly replace Valley Girl with another actress who just doesn't have the same vacant oddness. And the sequel has much less to do with a waxwork and more to do with reenacting scenes from lots of movies. Which makes it sound just like the first one. A fun way to waste a weekend afternoon.