Alexander Koch's early life was marked by a strong connection to his hometown of Detroit, Michigan, where he was born and raised. This connection was further strengthened by his involvement in local community and high-school theater productions, laying the groundwork for his future career in the performing arts. Koch's academic pursuits led him to attend the prestigious Theatre School at DePaul University.
Koch's professional acting career began with a notable role in the independent short film "The Ghosts", directed by Eddie O'Keefe. The film tells the story of "Frank", the charismatic leader of a 1950s greaser gang, who finds himself in a modern town and falls in love with the daughter of a preacher. The film premiered at the 2011 Brooklyn Film Festival, garnering critical acclaim from notable sources such as the Los Angeles Times, Chicago International Film Festival, and Geneva Film Festival. Koch's captivating performance as "Frank" caught the attention of industry professionals, leading to his relocation to Los Angeles in 2012.