Below is a listing of some of the characters from Jane Wagner's Search for Intelligent Life in the Universe. While most of the characters have lines, a few aren't even seen on stage.
Although the audience can learn about a person by finding out whom she knows, I think more can be learned by listening to who knows her.
Each of the links below leads to a page for that character, filled will a list of quotes about her, and each of the quotes leads to the character who said the quote.