Joseph Shackelford - is a video game designer. Joseph Shackelford began his career in 2013 and has worked for companies such as Activision, High Moon Studios, High Moon and Activision Blizzard. Joseph Shackelford's first game was Deadpool which was released 10 years ago. Best Game Joseph Shackelford contributed to was Deadpool. Joseph Shackelford's latest work is Deadpool which was released 10 years ago.