Casey joined Academy One in the Fall of 2010. Much was expected from the 6' 5" honor student and he has not disappointed. Casey has focused on soccer only since his sophomore year of high school. From the time he was five years old, Casey was dedicated to baseball. By the time he entered high school, Casey was one of the top baseball players in the country. He played at the top levels of Legion and AAU baseball. After a year of high school at Archbishop Spalding, Casey decided to devote his athletic efforts to soccer. Archbishop Spalding was one of the top academic private schools in Maryland while Casey attended and fellow Academy member Bridget Bielski also attended the Annapolis area school. He has been the starter for the Spalding soccer team since entering the school his freshmen year. His school plays in the top private school league in the nation for soccer, the MIAA. He culminated his junior year with being named All-Conference among the highly competitive group of goalkeepers. He again matched that honor his senior year, as well as adding All-Met for both Baltimore and Washington, All-Anne Arundel County and ESPN All-State honors. At a school where boys soccer has had a poor history, Casey is considered one of the best players to have ever played at the school. As a club player, Casey played in the top division of the National Capital Soccer League. He played with one one the top team in Maryland and the region. His Bethesda club team played in the Region I League for top clubs in the Northeastern United States. During his Junior year of high school, they made the Maryland State Cup final four. They again reached that level the following year. Casey played two years for the Maryland Olympic Development program. During the ODP region tournament, Casey was offered a tryout for U-17 National Team residency. He turned down the offer for the sake of his academic life. Casey was one of the top students at his academically demanding Archbishop Spalding High School. Casey was a finalist for the Academy One Academic Award. Casey committed to a scholarship to play soccer and study engineering at The University of Wisconsin, despite numerous offers from other athletically and academically prestigious schools. It also fulfilled Casey's desire to go to a cold weather university and fellow Academy member Alex Horwath also attended Wisconsin. During his first year at Wisconsin, Casey took a red-shirt year. In his second season, Casey took over the starting position and led the Badgers to a 4-0-1 record in his first five starts, leading the team to a national ranking for the first time in many years.