Friends

"Hello, Louie! Hello, Ruby!"

- The friends talking to Louie and Ruby.

In every episode (except the TV specials), the "friends" are offscreen speakers who are voiced by a group of kids. As the episode starts, the group of children are heard saying "Hello" to Louie and Ruby. Before the credits roll, the group of children are heard saying "See you soon" to Louie and Ruby. In the adaptation by Bob Saker, the speakers are voiced by Hot Kool Kids.

When Millimages uploaded a video on Vimeo, it is revealed that the "friends" have names. Their names are Peter, Agatha, Valerie, and Arthur.