Narrator

The Narrator is a minor character who announces the events of the episodes (while speaking with a British accent) ever since Killing Dora - Revenge of Alex OS.

Revealed in Killing Dora - Trapped In Time, he's the same person who narrated the Earthworm Jim TV series, which is based on the video game, and ran from 1995 to 1996.

As episodes went by, he became more of a narrator and less of an audience member.