What actors and actresses appeared in HAL on Earth - 2008?

There is no movie or TV show called "HAL on Earth - 2008." It seems like you might be combining elements from "2001: A Space Odyssey" and "HAL 9000" with the year 2008.

Perhaps you're thinking of a different title or a fictional story?

If you can give me more details, I can try to help you find the information you're looking for.