|Introduced In||Why that, Leonard?|
|Latest Appearance||Trip To The Underworld|
|Voiced by||Craig Fairbrass|
Simon was first introduced during the end of Why that, Leonard?, where he is the voice where he shouts "Just smash it!". He is Leonard's friend. He is one of the main protagonists of Adventure Time Crossover.
- No, he is not based of Ghost of the Modern Warfare series or that Call of Duty: Ghosts game, his name just sounded too awesome (his voice did, too) I had to name this character with this name.