He caught the attention of many college recruits especially for his agility and diversity in football.

He signed to Oklahoma State as a Defensive Tackle, playing all 4 years and in 4 bowl games.

This is where he met his sweetheart Carson Leon (an OSU cheerleader) who he married in May 2018.

[2] Castleman was given tryouts with the National Football League Green Bay Packers and Kansas City Chiefs[3] in 2015 and was signed by neither team.

This biographical article relating to an American football defensive lineman born in the 1990s is a stub.