Complex sentence: Cartman decides to rid the town of Mysterion, enlisting the help of Professor Chaos (Butters) and his sidekick General Disarray (Dougie) who, unlike the Coon, are as familiar to the residents of South Park as Mysterion.
Split into simpler sentences: Cartman decides to rid the town of Mysterion, enlisting the help of Professor Chaos (Butters) and his sidekick General Disarray (Dougie). They, unlike the Coon, are as familiar to the residents of South Park as Mysterion.