Mason Rickham is the main antagonist of Mason Rickham's REVENGE
From years 5 to 8 Mason Rickham was one Scott Lockhart's nemesis'. In 2014 Mason Rickham died from problems with his muscles.
Mason Rickham's REVENGE Edit
2 years later in 2016 Mason Rickham rises from the dead (accidentally Due to Thriller by Michael Jackson) to seek revenge on Scott Lockhart but fails really badly.